81096620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 144

約数和(自身を含む): 205922304

約数和(自身を除く): 124825684

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 31, 44, 46, 47, 55, 62, 92, 94, 110, 115, 121, 124, 155, 188, 220, 230, 235, 242, 253, 310, 341, 460, 470, 484, 506, 517, 605, 620, 682, 713, 940, 1012, 1034, 1081, 1210, 1265, 1364, 1426, 1457, 1705, 2068, 2162, 2420, 2530, 2585, 2783, 2852, 2914, 3410, 3565, 3751, 4324, 5060, 5170, 5405, 5566, 5687, 5828, 6820, 7130, 7285, 7502, 7843, 10340, 10810, 11132, 11374, 11891, 13915, 14260, 14570, 15004, 15686, 16027, 18755, 21620, 22748, 23782, 27830, 28435, 29140, 31372, 32054, 33511, 37510, 39215, 47564, 55660, 56870, 59455, 64108, 67022, 75020, 78430, 80135, 86273, 113740, 118910, 130801, 134044, 156860, 160270, 167555, 172546, 176297, 237820, 261602, 320540, 335110, 345092, 352594, 368621, 431365, 523204, 654005, 670220, 705188, 737242, 862730, 881485, 1308010, 1474484, 1725460, 1762970, 1843105, 2616020, 3525940, 3686210, 4054831, 7372420, 8109662, 16219324, 20274155, 40548310, 81096620]

約数ペア:

[(1, 81096620), (2, 40548310), (4, 20274155), (5, 16219324), (10, 8109662), (11, 7372420), (20, 4054831), (22, 3686210), (23, 3525940), (31, 2616020), (44, 1843105), (46, 1762970), (47, 1725460), (55, 1474484), (62, 1308010), (92, 881485), (94, 862730), (110, 737242), (115, 705188), (121, 670220), (124, 654005), (155, 523204), (188, 431365), (220, 368621), (230, 352594), (235, 345092), (242, 335110), (253, 320540), (310, 261602), (341, 237820), (460, 176297), (470, 172546), (484, 167555), (506, 160270), (517, 156860), (605, 134044), (620, 130801), (682, 118910), (713, 113740), (940, 86273), (1012, 80135), (1034, 78430), (1081, 75020), (1210, 67022), (1265, 64108), (1364, 59455), (1426, 56870), (1457, 55660), (1705, 47564), (2068, 39215), (2162, 37510), (2420, 33511), (2530, 32054), (2585, 31372), (2783, 29140), (2852, 28435), (2914, 27830), (3410, 23782), (3565, 22748), (3751, 21620), (4324, 18755), (5060, 16027), (5170, 15686), (5405, 15004), (5566, 14570), (5687, 14260), (5828, 13915), (6820, 11891), (7130, 11374), (7285, 11132), (7502, 10810), (7843, 10340)]