238020980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{21599}}^1$

素因数の和:21656

約数の個数: 48

約数和(自身を含む): 544320000

約数和(自身を除く): 306299020

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 2204, 2755, 5510, 11020, 21599, 43198, 86396, 107995, 215990, 410381, 431980, 626371, 820762, 1252742, 1641524, 2051905, 2505484, 3131855, 4103810, 6263710, 8207620, 11901049, 12527420, 23802098, 47604196, 59505245, 119010490, 238020980]

約数ペア:

[(1, 238020980), (2, 119010490), (4, 59505245), (5, 47604196), (10, 23802098), (19, 12527420), (20, 11901049), (29, 8207620), (38, 6263710), (58, 4103810), (76, 3131855), (95, 2505484), (116, 2051905), (145, 1641524), (190, 1252742), (290, 820762), (380, 626371), (551, 431980), (580, 410381), (1102, 215990), (2204, 107995), (2755, 86396), (5510, 43198), (11020, 21599)]