201770920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6361}}^1$

素因数の和:6446

約数の個数: 64

約数和(自身を含む): 496999440

約数和(自身を除く): 295228520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 61, 65, 104, 122, 130, 244, 260, 305, 488, 520, 610, 793, 1220, 1586, 2440, 3172, 3965, 6344, 6361, 7930, 12722, 15860, 25444, 31720, 31805, 50888, 63610, 82693, 127220, 165386, 254440, 330772, 388021, 413465, 661544, 776042, 826930, 1552084, 1653860, 1940105, 3104168, 3307720, 3880210, 5044273, 7760420, 10088546, 15520840, 20177092, 25221365, 40354184, 50442730, 100885460, 201770920]

約数ペア:

[(1, 201770920), (2, 100885460), (4, 50442730), (5, 40354184), (8, 25221365), (10, 20177092), (13, 15520840), (20, 10088546), (26, 7760420), (40, 5044273), (52, 3880210), (61, 3307720), (65, 3104168), (104, 1940105), (122, 1653860), (130, 1552084), (244, 826930), (260, 776042), (305, 661544), (488, 413465), (520, 388021), (610, 330772), (793, 254440), (1220, 165386), (1586, 127220), (2440, 82693), (3172, 63610), (3965, 50888), (6344, 31805), (6361, 31720), (7930, 25444), (12722, 15860)]