1640803890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{115631}}^1$

素因数の和:115695

約数の個数: 64

約数和(自身を含む): 4395866112

約数和(自身を除く): 2755062222

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 43, 55, 66, 86, 110, 129, 165, 215, 258, 330, 430, 473, 645, 946, 1290, 1419, 2365, 2838, 4730, 7095, 14190, 115631, 231262, 346893, 578155, 693786, 1156310, 1271941, 1734465, 2543882, 3468930, 3815823, 4972133, 6359705, 7631646, 9944266, 12719410, 14916399, 19079115, 24860665, 29832798, 38158230, 49721330, 54693463, 74581995, 109386926, 149163990, 164080389, 273467315, 328160778, 546934630, 820401945, 1640803890]

約数ペア:

[(1, 1640803890), (2, 820401945), (3, 546934630), (5, 328160778), (6, 273467315), (10, 164080389), (11, 149163990), (15, 109386926), (22, 74581995), (30, 54693463), (33, 49721330), (43, 38158230), (55, 29832798), (66, 24860665), (86, 19079115), (110, 14916399), (129, 12719410), (165, 9944266), (215, 7631646), (258, 6359705), (330, 4972133), (430, 3815823), (473, 3468930), (645, 2543882), (946, 1734465), (1290, 1271941), (1419, 1156310), (2365, 693786), (2838, 578155), (4730, 346893), (7095, 231262), (14190, 115631)]