28458880

素因数分解:

$2^7\times 5^1\times {\mathrm{53}}^1\times {\mathrm{839}}^1$

素因数の和:911

約数の個数: 64

約数和(自身を含む): 69400800

約数和(自身を除く): 40941920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 265, 320, 424, 530, 640, 839, 848, 1060, 1678, 1696, 2120, 3356, 3392, 4195, 4240, 6712, 6784, 8390, 8480, 13424, 16780, 16960, 26848, 33560, 33920, 44467, 53696, 67120, 88934, 107392, 134240, 177868, 222335, 268480, 355736, 444670, 536960, 711472, 889340, 1422944, 1778680, 2845888, 3557360, 5691776, 7114720, 14229440, 28458880]

約数ペア:

[(1, 28458880), (2, 14229440), (4, 7114720), (5, 5691776), (8, 3557360), (10, 2845888), (16, 1778680), (20, 1422944), (32, 889340), (40, 711472), (53, 536960), (64, 444670), (80, 355736), (106, 268480), (128, 222335), (160, 177868), (212, 134240), (265, 107392), (320, 88934), (424, 67120), (530, 53696), (640, 44467), (839, 33920), (848, 33560), (1060, 26848), (1678, 16960), (1696, 16780), (2120, 13424), (3356, 8480), (3392, 8390), (4195, 6784), (4240, 6712)]