201222550

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{991}}^1$

素因数の和:1165

約数の個数: 48

約数和(自身を含む): 389689344

約数和(自身を除く): 188466794

約数列:

[1, 2, 5, 10, 25, 31, 50, 62, 131, 155, 262, 310, 655, 775, 991, 1310, 1550, 1982, 3275, 4061, 4955, 6550, 8122, 9910, 20305, 24775, 30721, 40610, 49550, 61442, 101525, 129821, 153605, 203050, 259642, 307210, 649105, 768025, 1298210, 1536050, 3245525, 4024451, 6491050, 8048902, 20122255, 40244510, 100611275, 201222550]

約数ペア:

[(1, 201222550), (2, 100611275), (5, 40244510), (10, 20122255), (25, 8048902), (31, 6491050), (50, 4024451), (62, 3245525), (131, 1536050), (155, 1298210), (262, 768025), (310, 649105), (655, 307210), (775, 259642), (991, 203050), (1310, 153605), (1550, 129821), (1982, 101525), (3275, 61442), (4061, 49550), (4955, 40610), (6550, 30721), (8122, 24775), (9910, 20305)]