31678745

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 47190528

約数和(自身を除く): 15511783

約数列:

[1, 5, 7, 31, 35, 43, 49, 97, 155, 215, 217, 245, 301, 485, 679, 1085, 1333, 1505, 1519, 2107, 3007, 3395, 4171, 4753, 6665, 7595, 9331, 10535, 15035, 20855, 21049, 23765, 29197, 46655, 65317, 105245, 129301, 145985, 147343, 204379, 326585, 646505, 736715, 905107, 1021895, 4525535, 6335749, 31678745]

約数ペア:

[(1, 31678745), (5, 6335749), (7, 4525535), (31, 1021895), (35, 905107), (43, 736715), (49, 646505), (97, 326585), (155, 204379), (215, 147343), (217, 145985), (245, 129301), (301, 105245), (485, 65317), (679, 46655), (1085, 29197), (1333, 23765), (1505, 21049), (1519, 20855), (2107, 15035), (3007, 10535), (3395, 9331), (4171, 7595), (4753, 6665)]