25925000

素因数分解:

$2^3\times 5^5\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:109

約数の個数: 96

約数和(自身を含む): 65386440

約数和(自身を除く): 39461440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 61, 68, 85, 100, 122, 125, 136, 170, 200, 244, 250, 305, 340, 425, 488, 500, 610, 625, 680, 850, 1000, 1037, 1220, 1250, 1525, 1700, 2074, 2125, 2440, 2500, 3050, 3125, 3400, 4148, 4250, 5000, 5185, 6100, 6250, 7625, 8296, 8500, 10370, 10625, 12200, 12500, 15250, 17000, 20740, 21250, 25000, 25925, 30500, 38125, 41480, 42500, 51850, 53125, 61000, 76250, 85000, 103700, 106250, 129625, 152500, 190625, 207400, 212500, 259250, 305000, 381250, 425000, 518500, 648125, 762500, 1037000, 1296250, 1525000, 2592500, 3240625, 5185000, 6481250, 12962500, 25925000]

約数ペア:

[(1, 25925000), (2, 12962500), (4, 6481250), (5, 5185000), (8, 3240625), (10, 2592500), (17, 1525000), (20, 1296250), (25, 1037000), (34, 762500), (40, 648125), (50, 518500), (61, 425000), (68, 381250), (85, 305000), (100, 259250), (122, 212500), (125, 207400), (136, 190625), (170, 152500), (200, 129625), (244, 106250), (250, 103700), (305, 85000), (340, 76250), (425, 61000), (488, 53125), (500, 51850), (610, 42500), (625, 41480), (680, 38125), (850, 30500), (1000, 25925), (1037, 25000), (1220, 21250), (1250, 20740), (1525, 17000), (1700, 15250), (2074, 12500), (2125, 12200), (2440, 10625), (2500, 10370), (3050, 8500), (3125, 8296), (3400, 7625), (4148, 6250), (4250, 6100), (5000, 5185)]