20561469660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{857}}^1\times {\mathrm{3251}}^1$

素因数の和:4164

約数の個数: 144

約数和(自身を含む): 63985233312

約数和(自身を除く): 43423763652

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 41, 45, 60, 82, 90, 123, 164, 180, 205, 246, 369, 410, 492, 615, 738, 820, 857, 1230, 1476, 1714, 1845, 2460, 2571, 3251, 3428, 3690, 4285, 5142, 6502, 7380, 7713, 8570, 9753, 10284, 12855, 13004, 15426, 16255, 17140, 19506, 25710, 29259, 30852, 32510, 35137, 38565, 39012, 48765, 51420, 58518, 65020, 70274, 77130, 97530, 105411, 117036, 133291, 140548, 146295, 154260, 175685, 195060, 210822, 266582, 292590, 316233, 351370, 399873, 421644, 527055, 533164, 585180, 632466, 666455, 702740, 799746, 1054110, 1199619, 1264932, 1332910, 1581165, 1599492, 1999365, 2108220, 2399238, 2665820, 2786107, 3162330, 3998730, 4798476, 5572214, 5998095, 6324660, 7997460, 8358321, 11144428, 11996190, 13930535, 16716642, 23992380, 25074963, 27861070, 33433284, 41791605, 50149926, 55722140, 83583210, 100299852, 114230387, 125374815, 167166420, 228460774, 250749630, 342691161, 456921548, 501499260, 571151935, 685382322, 1028073483, 1142303870, 1370764644, 1713455805, 2056146966, 2284607740, 3426911610, 4112293932, 5140367415, 6853823220, 10280734830, 20561469660]

約数ペア:

[(1, 20561469660), (2, 10280734830), (3, 6853823220), (4, 5140367415), (5, 4112293932), (6, 3426911610), (9, 2284607740), (10, 2056146966), (12, 1713455805), (15, 1370764644), (18, 1142303870), (20, 1028073483), (30, 685382322), (36, 571151935), (41, 501499260), (45, 456921548), (60, 342691161), (82, 250749630), (90, 228460774), (123, 167166420), (164, 125374815), (180, 114230387), (205, 100299852), (246, 83583210), (369, 55722140), (410, 50149926), (492, 41791605), (615, 33433284), (738, 27861070), (820, 25074963), (857, 23992380), (1230, 16716642), (1476, 13930535), (1714, 11996190), (1845, 11144428), (2460, 8358321), (2571, 7997460), (3251, 6324660), (3428, 5998095), (3690, 5572214), (4285, 4798476), (5142, 3998730), (6502, 3162330), (7380, 2786107), (7713, 2665820), (8570, 2399238), (9753, 2108220), (10284, 1999365), (12855, 1599492), (13004, 1581165), (15426, 1332910), (16255, 1264932), (17140, 1199619), (19506, 1054110), (25710, 799746), (29259, 702740), (30852, 666455), (32510, 632466), (35137, 585180), (38565, 533164), (39012, 527055), (48765, 421644), (51420, 399873), (58518, 351370), (65020, 316233), (70274, 292590), (77130, 266582), (97530, 210822), (105411, 195060), (117036, 175685), (133291, 154260), (140548, 146295)]