40781840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^3\times {\mathrm{383}}^1$

素因数の和:429

約数の個数: 80

約数和(自身を含む): 104564736

約数和(自身を除く): 63782896

約数列:

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

約数ペア:

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