81255960

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{809}}^1$

素因数の和:863

約数の個数: 160

約数和(自身を含む): 282268800

約数和(自身を除く): 201012840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 31, 36, 40, 45, 54, 60, 62, 72, 81, 90, 93, 108, 120, 124, 135, 155, 162, 180, 186, 216, 248, 270, 279, 310, 324, 360, 372, 405, 465, 540, 558, 620, 648, 744, 809, 810, 837, 930, 1080, 1116, 1240, 1395, 1618, 1620, 1674, 1860, 2232, 2427, 2511, 2790, 3236, 3240, 3348, 3720, 4045, 4185, 4854, 5022, 5580, 6472, 6696, 7281, 8090, 8370, 9708, 10044, 11160, 12135, 12555, 14562, 16180, 16740, 19416, 20088, 21843, 24270, 25079, 25110, 29124, 32360, 33480, 36405, 43686, 48540, 50158, 50220, 58248, 65529, 72810, 75237, 87372, 97080, 100316, 100440, 109215, 125395, 131058, 145620, 150474, 174744, 200632, 218430, 225711, 250790, 262116, 291240, 300948, 327645, 376185, 436860, 451422, 501580, 524232, 601896, 655290, 677133, 752370, 873720, 902844, 1003160, 1128555, 1310580, 1354266, 1504740, 1805688, 2031399, 2257110, 2621160, 2708532, 3009480, 3385665, 4062798, 4514220, 5417064, 6771330, 8125596, 9028440, 10156995, 13542660, 16251192, 20313990, 27085320, 40627980, 81255960]

約数ペア:

[(1, 81255960), (2, 40627980), (3, 27085320), (4, 20313990), (5, 16251192), (6, 13542660), (8, 10156995), (9, 9028440), (10, 8125596), (12, 6771330), (15, 5417064), (18, 4514220), (20, 4062798), (24, 3385665), (27, 3009480), (30, 2708532), (31, 2621160), (36, 2257110), (40, 2031399), (45, 1805688), (54, 1504740), (60, 1354266), (62, 1310580), (72, 1128555), (81, 1003160), (90, 902844), (93, 873720), (108, 752370), (120, 677133), (124, 655290), (135, 601896), (155, 524232), (162, 501580), (180, 451422), (186, 436860), (216, 376185), (248, 327645), (270, 300948), (279, 291240), (310, 262116), (324, 250790), (360, 225711), (372, 218430), (405, 200632), (465, 174744), (540, 150474), (558, 145620), (620, 131058), (648, 125395), (744, 109215), (809, 100440), (810, 100316), (837, 97080), (930, 87372), (1080, 75237), (1116, 72810), (1240, 65529), (1395, 58248), (1618, 50220), (1620, 50158), (1674, 48540), (1860, 43686), (2232, 36405), (2427, 33480), (2511, 32360), (2790, 29124), (3236, 25110), (3240, 25079), (3348, 24270), (3720, 21843), (4045, 20088), (4185, 19416), (4854, 16740), (5022, 16180), (5580, 14562), (6472, 12555), (6696, 12135), (7281, 11160), (8090, 10044), (8370, 9708)]