309611900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{238163}}^1$

素因数の和:238190

約数の個数: 36

約数和(自身を含む): 723542232

約数和(自身を除く): 413930332

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 238163, 476326, 952652, 1190815, 2381630, 3096119, 4763260, 5954075, 6192238, 11908150, 12384476, 15480595, 23816300, 30961190, 61922380, 77402975, 154805950, 309611900]

約数ペア:

[(1, 309611900), (2, 154805950), (4, 77402975), (5, 61922380), (10, 30961190), (13, 23816300), (20, 15480595), (25, 12384476), (26, 11908150), (50, 6192238), (52, 5954075), (65, 4763260), (100, 3096119), (130, 2381630), (260, 1190815), (325, 952652), (650, 476326), (1300, 238163)]