1640632312

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{642881}}^1$

素因数の和:642927

約数の個数: 32

約数和(自身を含む): 3471562800

約数和(自身を除く): 1830930488

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 88, 116, 232, 319, 638, 1276, 2552, 642881, 1285762, 2571524, 5143048, 7071691, 14143382, 18643549, 28286764, 37287098, 56573528, 74574196, 149148392, 205079039, 410158078, 820316156, 1640632312]

約数ペア:

[(1, 1640632312), (2, 820316156), (4, 410158078), (8, 205079039), (11, 149148392), (22, 74574196), (29, 56573528), (44, 37287098), (58, 28286764), (88, 18643549), (116, 14143382), (232, 7071691), (319, 5143048), (638, 2571524), (1276, 1285762), (2552, 642881)]