20188966460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{113}}^1\times {\mathrm{52859}}^1$

素因数の和:53007

約数の個数: 72

約数和(自身を含む): 46316143440

約数和(自身を除く): 26127176980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 113, 130, 169, 226, 260, 338, 452, 565, 676, 845, 1130, 1469, 1690, 2260, 2938, 3380, 5876, 7345, 14690, 19097, 29380, 38194, 52859, 76388, 95485, 105718, 190970, 211436, 264295, 381940, 528590, 687167, 1057180, 1374334, 2748668, 3435835, 5973067, 6871670, 8933171, 11946134, 13743340, 17866342, 23892268, 29865335, 35732684, 44665855, 59730670, 77649871, 89331710, 119461340, 155299742, 178663420, 310599484, 388249355, 776498710, 1009448323, 1552997420, 2018896646, 4037793292, 5047241615, 10094483230, 20188966460]

約数ペア:

[(1, 20188966460), (2, 10094483230), (4, 5047241615), (5, 4037793292), (10, 2018896646), (13, 1552997420), (20, 1009448323), (26, 776498710), (52, 388249355), (65, 310599484), (113, 178663420), (130, 155299742), (169, 119461340), (226, 89331710), (260, 77649871), (338, 59730670), (452, 44665855), (565, 35732684), (676, 29865335), (845, 23892268), (1130, 17866342), (1469, 13743340), (1690, 11946134), (2260, 8933171), (2938, 6871670), (3380, 5973067), (5876, 3435835), (7345, 2748668), (14690, 1374334), (19097, 1057180), (29380, 687167), (38194, 528590), (52859, 381940), (76388, 264295), (95485, 211436), (105718, 190970)]