12896620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 31029264

約数和(自身を除く): 18132644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 61, 62, 110, 122, 124, 155, 220, 244, 305, 310, 341, 610, 620, 671, 682, 961, 1220, 1342, 1364, 1705, 1891, 1922, 2684, 3355, 3410, 3782, 3844, 4805, 6710, 6820, 7564, 9455, 9610, 10571, 13420, 18910, 19220, 20801, 21142, 37820, 41602, 42284, 52855, 58621, 83204, 104005, 105710, 117242, 208010, 211420, 234484, 293105, 416020, 586210, 644831, 1172420, 1289662, 2579324, 3224155, 6448310, 12896620]

約数ペア:

[(1, 12896620), (2, 6448310), (4, 3224155), (5, 2579324), (10, 1289662), (11, 1172420), (20, 644831), (22, 586210), (31, 416020), (44, 293105), (55, 234484), (61, 211420), (62, 208010), (110, 117242), (122, 105710), (124, 104005), (155, 83204), (220, 58621), (244, 52855), (305, 42284), (310, 41602), (341, 37820), (610, 21142), (620, 20801), (671, 19220), (682, 18910), (961, 13420), (1220, 10571), (1342, 9610), (1364, 9455), (1705, 7564), (1891, 6820), (1922, 6710), (2684, 4805), (3355, 3844), (3410, 3782)]