208518990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{2693}}^1$

素因数の和:2821

約数の個数: 64

約数和(自身を含む): 523713600

約数和(自身を除く): 315194610

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 89, 145, 174, 178, 267, 290, 435, 445, 534, 870, 890, 1335, 2581, 2670, 2693, 5162, 5386, 7743, 8079, 12905, 13465, 15486, 16158, 25810, 26930, 38715, 40395, 77430, 78097, 80790, 156194, 234291, 239677, 390485, 468582, 479354, 719031, 780970, 1171455, 1198385, 1438062, 2342910, 2396770, 3595155, 6950633, 7190310, 13901266, 20851899, 34753165, 41703798, 69506330, 104259495, 208518990]

約数ペア:

[(1, 208518990), (2, 104259495), (3, 69506330), (5, 41703798), (6, 34753165), (10, 20851899), (15, 13901266), (29, 7190310), (30, 6950633), (58, 3595155), (87, 2396770), (89, 2342910), (145, 1438062), (174, 1198385), (178, 1171455), (267, 780970), (290, 719031), (435, 479354), (445, 468582), (534, 390485), (870, 239677), (890, 234291), (1335, 156194), (2581, 80790), (2670, 78097), (2693, 77430), (5162, 40395), (5386, 38715), (7743, 26930), (8079, 25810), (12905, 16158), (13465, 15486)]