15010820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 72

約数和(自身を含む): 36033984

約数和(自身を除く): 21023164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 71, 110, 124, 142, 155, 220, 284, 310, 341, 355, 620, 682, 710, 781, 961, 1364, 1420, 1562, 1705, 1922, 2201, 3124, 3410, 3844, 3905, 4402, 4805, 6820, 7810, 8804, 9610, 10571, 11005, 15620, 19220, 21142, 22010, 24211, 42284, 44020, 48422, 52855, 68231, 96844, 105710, 121055, 136462, 211420, 242110, 272924, 341155, 484220, 682310, 750541, 1364620, 1501082, 3002164, 3752705, 7505410, 15010820]

約数ペア:

[(1, 15010820), (2, 7505410), (4, 3752705), (5, 3002164), (10, 1501082), (11, 1364620), (20, 750541), (22, 682310), (31, 484220), (44, 341155), (55, 272924), (62, 242110), (71, 211420), (110, 136462), (124, 121055), (142, 105710), (155, 96844), (220, 68231), (284, 52855), (310, 48422), (341, 44020), (355, 42284), (620, 24211), (682, 22010), (710, 21142), (781, 19220), (961, 15620), (1364, 11005), (1420, 10571), (1562, 9610), (1705, 8804), (1922, 7810), (2201, 6820), (3124, 4805), (3410, 4402), (3844, 3905)]