215605980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{8039}}^1$

素因数の和:8203

約数の個数: 72

約数和(自身を含む): 658476000

約数和(自身を除く): 442870020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 1341, 1490, 1788, 2235, 2682, 2980, 4470, 5364, 6705, 8039, 8940, 13410, 16078, 24117, 26820, 32156, 40195, 48234, 72351, 80390, 96468, 120585, 144702, 160780, 241170, 289404, 361755, 482340, 723510, 1197811, 1447020, 2395622, 3593433, 4791244, 5989055, 7186866, 10780299, 11978110, 14373732, 17967165, 21560598, 23956220, 35934330, 43121196, 53901495, 71868660, 107802990, 215605980]

約数ペア:

[(1, 215605980), (2, 107802990), (3, 71868660), (4, 53901495), (5, 43121196), (6, 35934330), (9, 23956220), (10, 21560598), (12, 17967165), (15, 14373732), (18, 11978110), (20, 10780299), (30, 7186866), (36, 5989055), (45, 4791244), (60, 3593433), (90, 2395622), (149, 1447020), (180, 1197811), (298, 723510), (447, 482340), (596, 361755), (745, 289404), (894, 241170), (1341, 160780), (1490, 144702), (1788, 120585), (2235, 96468), (2682, 80390), (2980, 72351), (4470, 48234), (5364, 40195), (6705, 32156), (8039, 26820), (8940, 24117), (13410, 16078)]