156116620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{2081}}^1$

素因数の和:2143

約数の個数: 72

約数和(自身を含む): 372161664

約数和(自身を除く): 216045044

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 220, 242, 310, 341, 484, 605, 620, 682, 1210, 1364, 1705, 2081, 2420, 3410, 3751, 4162, 6820, 7502, 8324, 10405, 15004, 18755, 20810, 22891, 37510, 41620, 45782, 64511, 75020, 91564, 114455, 129022, 228910, 251801, 258044, 322555, 457820, 503602, 645110, 709621, 1007204, 1259005, 1290220, 1419242, 2518010, 2838484, 3548105, 5036020, 7096210, 7805831, 14192420, 15611662, 31223324, 39029155, 78058310, 156116620]

約数ペア:

[(1, 156116620), (2, 78058310), (4, 39029155), (5, 31223324), (10, 15611662), (11, 14192420), (20, 7805831), (22, 7096210), (31, 5036020), (44, 3548105), (55, 2838484), (62, 2518010), (110, 1419242), (121, 1290220), (124, 1259005), (155, 1007204), (220, 709621), (242, 645110), (310, 503602), (341, 457820), (484, 322555), (605, 258044), (620, 251801), (682, 228910), (1210, 129022), (1364, 114455), (1705, 91564), (2081, 75020), (2420, 64511), (3410, 45782), (3751, 41620), (4162, 37510), (6820, 22891), (7502, 20810), (8324, 18755), (10405, 15004)]