201597980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{2693}}^1$

素因数の和:2918

約数の個数: 48

約数和(自身を含む): 448066080

約数和(自身を除く): 246468100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 197, 380, 394, 788, 985, 1970, 2693, 3743, 3940, 5386, 7486, 10772, 13465, 14972, 18715, 26930, 37430, 51167, 53860, 74860, 102334, 204668, 255835, 511670, 530521, 1023340, 1061042, 2122084, 2652605, 5305210, 10079899, 10610420, 20159798, 40319596, 50399495, 100798990, 201597980]

約数ペア:

[(1, 201597980), (2, 100798990), (4, 50399495), (5, 40319596), (10, 20159798), (19, 10610420), (20, 10079899), (38, 5305210), (76, 2652605), (95, 2122084), (190, 1061042), (197, 1023340), (380, 530521), (394, 511670), (788, 255835), (985, 204668), (1970, 102334), (2693, 74860), (3743, 53860), (3940, 51167), (5386, 37430), (7486, 26930), (10772, 18715), (13465, 14972)]