77128720

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:488

約数の個数: 80

約数和(自身を含む): 187273728

約数和(自身を除く): 110145008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 71, 74, 80, 142, 148, 185, 284, 296, 355, 367, 370, 568, 592, 710, 734, 740, 1136, 1420, 1468, 1480, 1835, 2627, 2840, 2936, 2960, 3670, 5254, 5680, 5872, 7340, 10508, 13135, 13579, 14680, 21016, 26057, 26270, 27158, 29360, 42032, 52114, 52540, 54316, 67895, 104228, 105080, 108632, 130285, 135790, 208456, 210160, 217264, 260570, 271580, 416912, 521140, 543160, 964109, 1042280, 1086320, 1928218, 2084560, 3856436, 4820545, 7712872, 9641090, 15425744, 19282180, 38564360, 77128720]

約数ペア:

[(1, 77128720), (2, 38564360), (4, 19282180), (5, 15425744), (8, 9641090), (10, 7712872), (16, 4820545), (20, 3856436), (37, 2084560), (40, 1928218), (71, 1086320), (74, 1042280), (80, 964109), (142, 543160), (148, 521140), (185, 416912), (284, 271580), (296, 260570), (355, 217264), (367, 210160), (370, 208456), (568, 135790), (592, 130285), (710, 108632), (734, 105080), (740, 104228), (1136, 67895), (1420, 54316), (1468, 52540), (1480, 52114), (1835, 42032), (2627, 29360), (2840, 27158), (2936, 26270), (2960, 26057), (3670, 21016), (5254, 14680), (5680, 13579), (5872, 13135), (7340, 10508)]