28607320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1439}}^1$

素因数の和:1528

約数の個数: 64

約数和(自身を含む): 74649600

約数和(自身を除く): 46042280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1439, 1988, 2485, 2840, 2878, 3976, 4970, 5756, 7195, 9940, 10073, 11512, 14390, 19880, 20146, 28780, 40292, 50365, 57560, 80584, 100730, 102169, 201460, 204338, 402920, 408676, 510845, 715183, 817352, 1021690, 1430366, 2043380, 2860732, 3575915, 4086760, 5721464, 7151830, 14303660, 28607320]

約数ペア:

[(1, 28607320), (2, 14303660), (4, 7151830), (5, 5721464), (7, 4086760), (8, 3575915), (10, 2860732), (14, 2043380), (20, 1430366), (28, 1021690), (35, 817352), (40, 715183), (56, 510845), (70, 408676), (71, 402920), (140, 204338), (142, 201460), (280, 102169), (284, 100730), (355, 80584), (497, 57560), (568, 50365), (710, 40292), (994, 28780), (1420, 20146), (1439, 19880), (1988, 14390), (2485, 11512), (2840, 10073), (2878, 9940), (3976, 7195), (4970, 5756)]