1640390049

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{389}}^1\times {\mathrm{659}}^1$

素因数の和:1139

約数の個数: 40

約数和(自身を含む): 2491632000

約数和(自身を除く): 851241951

約数列:

[1, 3, 9, 27, 79, 81, 237, 389, 659, 711, 1167, 1977, 2133, 3501, 5931, 6399, 10503, 17793, 30731, 31509, 52061, 53379, 92193, 156183, 256351, 276579, 468549, 769053, 829737, 1405647, 2307159, 2489211, 4216941, 6921477, 20251729, 20764431, 60755187, 182265561, 546796683, 1640390049]

約数ペア:

[(1, 1640390049), (3, 546796683), (9, 182265561), (27, 60755187), (79, 20764431), (81, 20251729), (237, 6921477), (389, 4216941), (659, 2489211), (711, 2307159), (1167, 1405647), (1977, 829737), (2133, 769053), (3501, 468549), (5931, 276579), (6399, 256351), (10503, 156183), (17793, 92193), (30731, 53379), (31509, 52061)]