81563680

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^3\times {\mathrm{383}}^1$

素因数の和:431

約数の個数: 96

約数和(自身を含む): 212502528

約数和(自身を除く): 130938848

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 383, 440, 484, 605, 766, 880, 968, 1210, 1331, 1532, 1760, 1915, 1936, 2420, 2662, 3064, 3830, 3872, 4213, 4840, 5324, 6128, 6655, 7660, 8426, 9680, 10648, 12256, 13310, 15320, 16852, 19360, 21065, 21296, 26620, 30640, 33704, 42130, 42592, 46343, 53240, 61280, 67408, 84260, 92686, 106480, 134816, 168520, 185372, 212960, 231715, 337040, 370744, 463430, 509773, 674080, 741488, 926860, 1019546, 1482976, 1853720, 2039092, 2548865, 3707440, 4078184, 5097730, 7414880, 8156368, 10195460, 16312736, 20390920, 40781840, 81563680]

約数ペア:

[(1, 81563680), (2, 40781840), (4, 20390920), (5, 16312736), (8, 10195460), (10, 8156368), (11, 7414880), (16, 5097730), (20, 4078184), (22, 3707440), (32, 2548865), (40, 2039092), (44, 1853720), (55, 1482976), (80, 1019546), (88, 926860), (110, 741488), (121, 674080), (160, 509773), (176, 463430), (220, 370744), (242, 337040), (352, 231715), (383, 212960), (440, 185372), (484, 168520), (605, 134816), (766, 106480), (880, 92686), (968, 84260), (1210, 67408), (1331, 61280), (1532, 53240), (1760, 46343), (1915, 42592), (1936, 42130), (2420, 33704), (2662, 30640), (3064, 26620), (3830, 21296), (3872, 21065), (4213, 19360), (4840, 16852), (5324, 15320), (6128, 13310), (6655, 12256), (7660, 10648), (8426, 9680)]