840507430

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{21557}}^1$

素因数の和:22128

約数の個数: 32

約数和(自身を含む): 1732228416

約数和(自身を除く): 891720986

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 557, 1114, 2785, 3899, 5570, 7798, 19495, 21557, 38990, 43114, 107785, 150899, 215570, 301798, 754495, 1508990, 12007249, 24014498, 60036245, 84050743, 120072490, 168101486, 420253715, 840507430]

約数ペア:

[(1, 840507430), (2, 420253715), (5, 168101486), (7, 120072490), (10, 84050743), (14, 60036245), (35, 24014498), (70, 12007249), (557, 1508990), (1114, 754495), (2785, 301798), (3899, 215570), (5570, 150899), (7798, 107785), (19495, 43114), (21557, 38990)]