16855020

素因数分解:

$2^2\times 3^3\times 5^1\times 7^4\times {\mathrm{13}}^1$

素因数の和:59

約数の個数: 240

約数和(自身を含む): 65879520

約数和(自身を除く): 49024500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 49, 52, 54, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 108, 117, 126, 130, 135, 140, 147, 156, 180, 182, 189, 195, 196, 210, 234, 245, 252, 260, 270, 273, 294, 315, 343, 351, 364, 378, 390, 420, 441, 455, 468, 490, 540, 546, 585, 588, 630, 637, 686, 702, 735, 756, 780, 819, 882, 910, 945, 980, 1029, 1092, 1170, 1260, 1274, 1323, 1365, 1372, 1404, 1470, 1638, 1715, 1755, 1764, 1820, 1890, 1911, 2058, 2205, 2340, 2401, 2457, 2548, 2646, 2730, 2940, 3087, 3185, 3276, 3430, 3510, 3780, 3822, 4095, 4116, 4410, 4459, 4802, 4914, 5145, 5292, 5460, 5733, 6174, 6370, 6615, 6860, 7020, 7203, 7644, 8190, 8820, 8918, 9261, 9555, 9604, 9828, 10290, 11466, 12005, 12285, 12348, 12740, 13230, 13377, 14406, 15435, 16380, 17199, 17836, 18522, 19110, 20580, 21609, 22295, 22932, 24010, 24570, 26460, 26754, 28665, 28812, 30870, 31213, 34398, 36015, 37044, 38220, 40131, 43218, 44590, 46305, 48020, 49140, 53508, 57330, 61740, 62426, 64827, 66885, 68796, 72030, 80262, 85995, 86436, 89180, 92610, 93639, 108045, 114660, 120393, 124852, 129654, 133770, 144060, 156065, 160524, 171990, 185220, 187278, 200655, 216090, 240786, 259308, 267540, 280917, 312130, 324135, 343980, 374556, 401310, 432180, 468195, 481572, 561834, 601965, 624260, 648270, 802620, 842751, 936390, 1123668, 1203930, 1296540, 1404585, 1685502, 1872780, 2407860, 2809170, 3371004, 4213755, 5618340, 8427510, 16855020]

約数ペア:

[(1, 16855020), (2, 8427510), (3, 5618340), (4, 4213755), (5, 3371004), (6, 2809170), (7, 2407860), (9, 1872780), (10, 1685502), (12, 1404585), (13, 1296540), (14, 1203930), (15, 1123668), (18, 936390), (20, 842751), (21, 802620), (26, 648270), (27, 624260), (28, 601965), (30, 561834), (35, 481572), (36, 468195), (39, 432180), (42, 401310), (45, 374556), (49, 343980), (52, 324135), (54, 312130), (60, 280917), (63, 267540), (65, 259308), (70, 240786), (78, 216090), (84, 200655), (90, 187278), (91, 185220), (98, 171990), (105, 160524), (108, 156065), (117, 144060), (126, 133770), (130, 129654), (135, 124852), (140, 120393), (147, 114660), (156, 108045), (180, 93639), (182, 92610), (189, 89180), (195, 86436), (196, 85995), (210, 80262), (234, 72030), (245, 68796), (252, 66885), (260, 64827), (270, 62426), (273, 61740), (294, 57330), (315, 53508), (343, 49140), (351, 48020), (364, 46305), (378, 44590), (390, 43218), (420, 40131), (441, 38220), (455, 37044), (468, 36015), (490, 34398), (540, 31213), (546, 30870), (585, 28812), (588, 28665), (630, 26754), (637, 26460), (686, 24570), (702, 24010), (735, 22932), (756, 22295), (780, 21609), (819, 20580), (882, 19110), (910, 18522), (945, 17836), (980, 17199), (1029, 16380), (1092, 15435), (1170, 14406), (1260, 13377), (1274, 13230), (1323, 12740), (1365, 12348), (1372, 12285), (1404, 12005), (1470, 11466), (1638, 10290), (1715, 9828), (1755, 9604), (1764, 9555), (1820, 9261), (1890, 8918), (1911, 8820), (2058, 8190), (2205, 7644), (2340, 7203), (2401, 7020), (2457, 6860), (2548, 6615), (2646, 6370), (2730, 6174), (2940, 5733), (3087, 5460), (3185, 5292), (3276, 5145), (3430, 4914), (3510, 4802), (3780, 4459), (3822, 4410), (4095, 4116)]