31303900

素因数分解:

$2^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{4409}}^1$

素因数の和:4494

約数の個数: 36

約数和(自身を含む): 68901840

約数和(自身を除く): 37597940

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 142, 284, 355, 710, 1420, 1775, 3550, 4409, 7100, 8818, 17636, 22045, 44090, 88180, 110225, 220450, 313039, 440900, 626078, 1252156, 1565195, 3130390, 6260780, 7825975, 15651950, 31303900]

約数ペア:

[(1, 31303900), (2, 15651950), (4, 7825975), (5, 6260780), (10, 3130390), (20, 1565195), (25, 1252156), (50, 626078), (71, 440900), (100, 313039), (142, 220450), (284, 110225), (355, 88180), (710, 44090), (1420, 22045), (1775, 17636), (3550, 8818), (4409, 7100)]