258847360

素因数分解:

$2^7\times 5^1\times {\mathrm{404449}}^1$

素因数の和:404468

約数の個数: 32

約数和(自身を含む): 618808500

約数和(自身を除く): 359961140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 404449, 808898, 1617796, 2022245, 3235592, 4044490, 6471184, 8088980, 12942368, 16177960, 25884736, 32355920, 51769472, 64711840, 129423680, 258847360]

約数ペア:

[(1, 258847360), (2, 129423680), (4, 64711840), (5, 51769472), (8, 32355920), (10, 25884736), (16, 16177960), (20, 12942368), (32, 8088980), (40, 6471184), (64, 4044490), (80, 3235592), (128, 2022245), (160, 1617796), (320, 808898), (640, 404449)]