155880940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{4229}}^1$

素因数の和:4354

約数の個数: 48

約数和(自身を含む): 348213600

約数和(自身を除く): 192332660

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 97, 190, 194, 380, 388, 485, 970, 1843, 1940, 3686, 4229, 7372, 8458, 9215, 16916, 18430, 21145, 36860, 42290, 80351, 84580, 160702, 321404, 401755, 410213, 803510, 820426, 1607020, 1640852, 2051065, 4102130, 7794047, 8204260, 15588094, 31176188, 38970235, 77940470, 155880940]

約数ペア:

[(1, 155880940), (2, 77940470), (4, 38970235), (5, 31176188), (10, 15588094), (19, 8204260), (20, 7794047), (38, 4102130), (76, 2051065), (95, 1640852), (97, 1607020), (190, 820426), (194, 803510), (380, 410213), (388, 401755), (485, 321404), (970, 160702), (1843, 84580), (1940, 80351), (3686, 42290), (4229, 36860), (7372, 21145), (8458, 18430), (9215, 16916)]