1897480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 4762800

約数和(自身を除く): 2865320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 89, 104, 130, 164, 178, 205, 260, 328, 356, 410, 445, 520, 533, 712, 820, 890, 1066, 1157, 1640, 1780, 2132, 2314, 2665, 3560, 3649, 4264, 4628, 5330, 5785, 7298, 9256, 10660, 11570, 14596, 18245, 21320, 23140, 29192, 36490, 46280, 47437, 72980, 94874, 145960, 189748, 237185, 379496, 474370, 948740, 1897480]

約数ペア:

[(1, 1897480), (2, 948740), (4, 474370), (5, 379496), (8, 237185), (10, 189748), (13, 145960), (20, 94874), (26, 72980), (40, 47437), (41, 46280), (52, 36490), (65, 29192), (82, 23140), (89, 21320), (104, 18245), (130, 14596), (164, 11570), (178, 10660), (205, 9256), (260, 7298), (328, 5785), (356, 5330), (410, 4628), (445, 4264), (520, 3649), (533, 3560), (712, 2665), (820, 2314), (890, 2132), (1066, 1780), (1157, 1640)]