51850000

素因数分解:

$2^4\times 5^5\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 120

約数和(自身を含む): 135131976

約数和(自身を除く): 83281976

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 61, 68, 80, 85, 100, 122, 125, 136, 170, 200, 244, 250, 272, 305, 340, 400, 425, 488, 500, 610, 625, 680, 850, 976, 1000, 1037, 1220, 1250, 1360, 1525, 1700, 2000, 2074, 2125, 2440, 2500, 3050, 3125, 3400, 4148, 4250, 4880, 5000, 5185, 6100, 6250, 6800, 7625, 8296, 8500, 10000, 10370, 10625, 12200, 12500, 15250, 16592, 17000, 20740, 21250, 24400, 25000, 25925, 30500, 34000, 38125, 41480, 42500, 50000, 51850, 53125, 61000, 76250, 82960, 85000, 103700, 106250, 122000, 129625, 152500, 170000, 190625, 207400, 212500, 259250, 305000, 381250, 414800, 425000, 518500, 610000, 648125, 762500, 850000, 1037000, 1296250, 1525000, 2074000, 2592500, 3050000, 3240625, 5185000, 6481250, 10370000, 12962500, 25925000, 51850000]

約数ペア:

[(1, 51850000), (2, 25925000), (4, 12962500), (5, 10370000), (8, 6481250), (10, 5185000), (16, 3240625), (17, 3050000), (20, 2592500), (25, 2074000), (34, 1525000), (40, 1296250), (50, 1037000), (61, 850000), (68, 762500), (80, 648125), (85, 610000), (100, 518500), (122, 425000), (125, 414800), (136, 381250), (170, 305000), (200, 259250), (244, 212500), (250, 207400), (272, 190625), (305, 170000), (340, 152500), (400, 129625), (425, 122000), (488, 106250), (500, 103700), (610, 85000), (625, 82960), (680, 76250), (850, 61000), (976, 53125), (1000, 51850), (1037, 50000), (1220, 42500), (1250, 41480), (1360, 38125), (1525, 34000), (1700, 30500), (2000, 25925), (2074, 25000), (2125, 24400), (2440, 21250), (2500, 20740), (3050, 17000), (3125, 16592), (3400, 15250), (4148, 12500), (4250, 12200), (4880, 10625), (5000, 10370), (5185, 10000), (6100, 8500), (6250, 8296), (6800, 7625)]