645663960

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{571}}^1$

素因数の和:943

約数の個数: 160

約数和(自身を含む): 2180178000

約数和(自身を除く): 1534514040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 349, 360, 405, 540, 571, 648, 698, 810, 1047, 1080, 1142, 1396, 1620, 1713, 1745, 2094, 2284, 2792, 2855, 3141, 3240, 3426, 3490, 4188, 4568, 5139, 5235, 5710, 6282, 6852, 6980, 8376, 8565, 9423, 10278, 10470, 11420, 12564, 13704, 13960, 15417, 15705, 17130, 18846, 20556, 20940, 22840, 25128, 25695, 28269, 30834, 31410, 34260, 37692, 41112, 41880, 46251, 47115, 51390, 56538, 61668, 62820, 68520, 75384, 77085, 92502, 94230, 102780, 113076, 123336, 125640, 141345, 154170, 185004, 188460, 199279, 205560, 226152, 231255, 282690, 308340, 370008, 376920, 398558, 462510, 565380, 597837, 616680, 797116, 925020, 996395, 1130760, 1195674, 1594232, 1793511, 1850040, 1992790, 2391348, 2989185, 3587022, 3985580, 4782696, 5380533, 5978370, 7174044, 7971160, 8967555, 10761066, 11956740, 14348088, 16141599, 17935110, 21522132, 23913480, 26902665, 32283198, 35870220, 43044264, 53805330, 64566396, 71740440, 80707995, 107610660, 129132792, 161415990, 215221320, 322831980, 645663960]

約数ペア:

[(1, 645663960), (2, 322831980), (3, 215221320), (4, 161415990), (5, 129132792), (6, 107610660), (8, 80707995), (9, 71740440), (10, 64566396), (12, 53805330), (15, 43044264), (18, 35870220), (20, 32283198), (24, 26902665), (27, 23913480), (30, 21522132), (36, 17935110), (40, 16141599), (45, 14348088), (54, 11956740), (60, 10761066), (72, 8967555), (81, 7971160), (90, 7174044), (108, 5978370), (120, 5380533), (135, 4782696), (162, 3985580), (180, 3587022), (216, 2989185), (270, 2391348), (324, 1992790), (349, 1850040), (360, 1793511), (405, 1594232), (540, 1195674), (571, 1130760), (648, 996395), (698, 925020), (810, 797116), (1047, 616680), (1080, 597837), (1142, 565380), (1396, 462510), (1620, 398558), (1713, 376920), (1745, 370008), (2094, 308340), (2284, 282690), (2792, 231255), (2855, 226152), (3141, 205560), (3240, 199279), (3426, 188460), (3490, 185004), (4188, 154170), (4568, 141345), (5139, 125640), (5235, 123336), (5710, 113076), (6282, 102780), (6852, 94230), (6980, 92502), (8376, 77085), (8565, 75384), (9423, 68520), (10278, 62820), (10470, 61668), (11420, 56538), (12564, 51390), (13704, 47115), (13960, 46251), (15417, 41880), (15705, 41112), (17130, 37692), (18846, 34260), (20556, 31410), (20940, 30834), (22840, 28269), (25128, 25695)]