30021640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 96

約数和(自身を含む): 77215680

約数和(自身を除く): 47194040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 71, 88, 110, 124, 142, 155, 220, 248, 284, 310, 341, 355, 440, 568, 620, 682, 710, 781, 961, 1240, 1364, 1420, 1562, 1705, 1922, 2201, 2728, 2840, 3124, 3410, 3844, 3905, 4402, 4805, 6248, 6820, 7688, 7810, 8804, 9610, 10571, 11005, 13640, 15620, 17608, 19220, 21142, 22010, 24211, 31240, 38440, 42284, 44020, 48422, 52855, 68231, 84568, 88040, 96844, 105710, 121055, 136462, 193688, 211420, 242110, 272924, 341155, 422840, 484220, 545848, 682310, 750541, 968440, 1364620, 1501082, 2729240, 3002164, 3752705, 6004328, 7505410, 15010820, 30021640]

約数ペア:

[(1, 30021640), (2, 15010820), (4, 7505410), (5, 6004328), (8, 3752705), (10, 3002164), (11, 2729240), (20, 1501082), (22, 1364620), (31, 968440), (40, 750541), (44, 682310), (55, 545848), (62, 484220), (71, 422840), (88, 341155), (110, 272924), (124, 242110), (142, 211420), (155, 193688), (220, 136462), (248, 121055), (284, 105710), (310, 96844), (341, 88040), (355, 84568), (440, 68231), (568, 52855), (620, 48422), (682, 44020), (710, 42284), (781, 38440), (961, 31240), (1240, 24211), (1364, 22010), (1420, 21142), (1562, 19220), (1705, 17608), (1922, 15620), (2201, 13640), (2728, 11005), (2840, 10571), (3124, 9610), (3410, 8804), (3844, 7810), (3905, 7688), (4402, 6820), (4805, 6248)]