661863420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:433

約数の個数: 192

約数和(自身を含む): 2129863680

約数和(自身を除く): 1468000260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 71, 90, 108, 122, 135, 142, 180, 183, 213, 244, 270, 283, 284, 305, 355, 366, 426, 540, 549, 566, 610, 639, 710, 732, 849, 852, 915, 1065, 1098, 1132, 1220, 1278, 1415, 1420, 1647, 1698, 1830, 1917, 2130, 2196, 2547, 2556, 2745, 2830, 3195, 3294, 3396, 3660, 3834, 4245, 4260, 4331, 5094, 5490, 5660, 6390, 6588, 7641, 7668, 8235, 8490, 8662, 9585, 10188, 10980, 12735, 12780, 12993, 15282, 16470, 16980, 17263, 17324, 19170, 20093, 21655, 25470, 25986, 30564, 32940, 34526, 38205, 38340, 38979, 40186, 43310, 50940, 51789, 51972, 60279, 64965, 69052, 76410, 77958, 80372, 86315, 86620, 100465, 103578, 116937, 120558, 129930, 152820, 155367, 155916, 172630, 180837, 194895, 200930, 207156, 233874, 241116, 258945, 259860, 301395, 310734, 345260, 361674, 389790, 401860, 466101, 467748, 517890, 542511, 584685, 602790, 621468, 723348, 776835, 779580, 904185, 932202, 1035780, 1085022, 1169370, 1205580, 1225673, 1553670, 1808370, 1864404, 2170044, 2330505, 2338740, 2451346, 2712555, 3107340, 3616740, 3677019, 4661010, 4902692, 5425110, 6128365, 7354038, 9322020, 10850220, 11031057, 12256730, 14708076, 18385095, 22062114, 24513460, 33093171, 36770190, 44124228, 55155285, 66186342, 73540380, 110310570, 132372684, 165465855, 220621140, 330931710, 661863420]

約数ペア:

[(1, 661863420), (2, 330931710), (3, 220621140), (4, 165465855), (5, 132372684), (6, 110310570), (9, 73540380), (10, 66186342), (12, 55155285), (15, 44124228), (18, 36770190), (20, 33093171), (27, 24513460), (30, 22062114), (36, 18385095), (45, 14708076), (54, 12256730), (60, 11031057), (61, 10850220), (71, 9322020), (90, 7354038), (108, 6128365), (122, 5425110), (135, 4902692), (142, 4661010), (180, 3677019), (183, 3616740), (213, 3107340), (244, 2712555), (270, 2451346), (283, 2338740), (284, 2330505), (305, 2170044), (355, 1864404), (366, 1808370), (426, 1553670), (540, 1225673), (549, 1205580), (566, 1169370), (610, 1085022), (639, 1035780), (710, 932202), (732, 904185), (849, 779580), (852, 776835), (915, 723348), (1065, 621468), (1098, 602790), (1132, 584685), (1220, 542511), (1278, 517890), (1415, 467748), (1420, 466101), (1647, 401860), (1698, 389790), (1830, 361674), (1917, 345260), (2130, 310734), (2196, 301395), (2547, 259860), (2556, 258945), (2745, 241116), (2830, 233874), (3195, 207156), (3294, 200930), (3396, 194895), (3660, 180837), (3834, 172630), (4245, 155916), (4260, 155367), (4331, 152820), (5094, 129930), (5490, 120558), (5660, 116937), (6390, 103578), (6588, 100465), (7641, 86620), (7668, 86315), (8235, 80372), (8490, 77958), (8662, 76410), (9585, 69052), (10188, 64965), (10980, 60279), (12735, 51972), (12780, 51789), (12993, 50940), (15282, 43310), (16470, 40186), (16980, 38979), (17263, 38340), (17324, 38205), (19170, 34526), (20093, 32940), (21655, 30564), (25470, 25986)]