1999781460

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1\times {\mathrm{281}}^1$

素因数の和:516

約数の個数: 240

約数和(自身を含む): 6603835392

約数和(自身を除く): 4604053932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 27, 30, 36, 45, 46, 54, 60, 69, 81, 90, 92, 108, 115, 135, 138, 162, 180, 191, 207, 230, 270, 276, 281, 324, 345, 382, 405, 414, 460, 540, 562, 573, 621, 690, 764, 810, 828, 843, 955, 1035, 1124, 1146, 1242, 1380, 1405, 1620, 1686, 1719, 1863, 1910, 2070, 2292, 2484, 2529, 2810, 2865, 3105, 3372, 3438, 3726, 3820, 4140, 4215, 4393, 5058, 5157, 5620, 5730, 6210, 6463, 6876, 7452, 7587, 8430, 8595, 8786, 9315, 10116, 10314, 11460, 12420, 12645, 12926, 13179, 15174, 15471, 16860, 17190, 17572, 18630, 19389, 20628, 21965, 22761, 25290, 25785, 25852, 26358, 30348, 30942, 32315, 34380, 37260, 37935, 38778, 39537, 43930, 45522, 50580, 51570, 52716, 53671, 58167, 61884, 64630, 65895, 75870, 77355, 77556, 79074, 87860, 91044, 96945, 103140, 107342, 113805, 116334, 118611, 129260, 131790, 151740, 154710, 158148, 161013, 174501, 193890, 197685, 214684, 227610, 232668, 237222, 263580, 268355, 290835, 309420, 322026, 349002, 355833, 387780, 395370, 455220, 474444, 483039, 523503, 536710, 581670, 593055, 644052, 698004, 711666, 790740, 805065, 872505, 966078, 1047006, 1073420, 1163340, 1186110, 1234433, 1423332, 1449117, 1610130, 1745010, 1779165, 1932156, 2094012, 2372220, 2415195, 2468866, 2617515, 2898234, 3220260, 3490020, 3558330, 3703299, 4347351, 4830390, 4937732, 5235030, 5796468, 6172165, 7116660, 7245585, 7406598, 8694702, 9660780, 10470060, 11109897, 12344330, 14491170, 14813196, 17389404, 18516495, 21736755, 22219794, 24688660, 28982340, 33329691, 37032990, 43473510, 44439588, 55549485, 66659382, 74065980, 86947020, 99989073, 111098970, 133318764, 166648455, 199978146, 222197940, 333296910, 399956292, 499945365, 666593820, 999890730, 1999781460]

約数ペア:

[(1, 1999781460), (2, 999890730), (3, 666593820), (4, 499945365), (5, 399956292), (6, 333296910), (9, 222197940), (10, 199978146), (12, 166648455), (15, 133318764), (18, 111098970), (20, 99989073), (23, 86947020), (27, 74065980), (30, 66659382), (36, 55549485), (45, 44439588), (46, 43473510), (54, 37032990), (60, 33329691), (69, 28982340), (81, 24688660), (90, 22219794), (92, 21736755), (108, 18516495), (115, 17389404), (135, 14813196), (138, 14491170), (162, 12344330), (180, 11109897), (191, 10470060), (207, 9660780), (230, 8694702), (270, 7406598), (276, 7245585), (281, 7116660), (324, 6172165), (345, 5796468), (382, 5235030), (405, 4937732), (414, 4830390), (460, 4347351), (540, 3703299), (562, 3558330), (573, 3490020), (621, 3220260), (690, 2898234), (764, 2617515), (810, 2468866), (828, 2415195), (843, 2372220), (955, 2094012), (1035, 1932156), (1124, 1779165), (1146, 1745010), (1242, 1610130), (1380, 1449117), (1405, 1423332), (1620, 1234433), (1686, 1186110), (1719, 1163340), (1863, 1073420), (1910, 1047006), (2070, 966078), (2292, 872505), (2484, 805065), (2529, 790740), (2810, 711666), (2865, 698004), (3105, 644052), (3372, 593055), (3438, 581670), (3726, 536710), (3820, 523503), (4140, 483039), (4215, 474444), (4393, 455220), (5058, 395370), (5157, 387780), (5620, 355833), (5730, 349002), (6210, 322026), (6463, 309420), (6876, 290835), (7452, 268355), (7587, 263580), (8430, 237222), (8595, 232668), (8786, 227610), (9315, 214684), (10116, 197685), (10314, 193890), (11460, 174501), (12420, 161013), (12645, 158148), (12926, 154710), (13179, 151740), (15174, 131790), (15471, 129260), (16860, 118611), (17190, 116334), (17572, 113805), (18630, 107342), (19389, 103140), (20628, 96945), (21965, 91044), (22761, 87860), (25290, 79074), (25785, 77556), (25852, 77355), (26358, 75870), (30348, 65895), (30942, 64630), (32315, 61884), (34380, 58167), (37260, 53671), (37935, 52716), (38778, 51570), (39537, 50580), (43930, 45522)]