645990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:424

約数の個数: 32

約数和(自身を含む): 1580256

約数和(自身を除く): 934266

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 61, 122, 183, 305, 353, 366, 610, 706, 915, 1059, 1765, 1830, 2118, 3530, 5295, 10590, 21533, 43066, 64599, 107665, 129198, 215330, 322995, 645990]

約数ペア:

[(1, 645990), (2, 322995), (3, 215330), (5, 129198), (6, 107665), (10, 64599), (15, 43066), (30, 21533), (61, 10590), (122, 5295), (183, 3530), (305, 2118), (353, 1830), (366, 1765), (610, 1059), (706, 915)]