12962500

素因数分解:

$2^2\times 5^5\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:107

約数の個数: 72

約数和(自身を含む): 30513672

約数和(自身を除く): 17551172

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 61, 68, 85, 100, 122, 125, 170, 244, 250, 305, 340, 425, 500, 610, 625, 850, 1037, 1220, 1250, 1525, 1700, 2074, 2125, 2500, 3050, 3125, 4148, 4250, 5185, 6100, 6250, 7625, 8500, 10370, 10625, 12500, 15250, 20740, 21250, 25925, 30500, 38125, 42500, 51850, 53125, 76250, 103700, 106250, 129625, 152500, 190625, 212500, 259250, 381250, 518500, 648125, 762500, 1296250, 2592500, 3240625, 6481250, 12962500]

約数ペア:

[(1, 12962500), (2, 6481250), (4, 3240625), (5, 2592500), (10, 1296250), (17, 762500), (20, 648125), (25, 518500), (34, 381250), (50, 259250), (61, 212500), (68, 190625), (85, 152500), (100, 129625), (122, 106250), (125, 103700), (170, 76250), (244, 53125), (250, 51850), (305, 42500), (340, 38125), (425, 30500), (500, 25925), (610, 21250), (625, 20740), (850, 15250), (1037, 12500), (1220, 10625), (1250, 10370), (1525, 8500), (1700, 7625), (2074, 6250), (2125, 6100), (2500, 5185), (3050, 4250), (3125, 4148)]