20331164

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 42792960

約数和(自身を除く): 22461796

約数列:

[1, 2, 4, 7, 14, 28, 31, 59, 62, 118, 124, 217, 236, 397, 413, 434, 794, 826, 868, 1588, 1652, 1829, 2779, 3658, 5558, 7316, 11116, 12307, 12803, 23423, 24614, 25606, 46846, 49228, 51212, 86149, 93692, 163961, 172298, 327922, 344596, 655844, 726113, 1452226, 2904452, 5082791, 10165582, 20331164]

約数ペア:

[(1, 20331164), (2, 10165582), (4, 5082791), (7, 2904452), (14, 1452226), (28, 726113), (31, 655844), (59, 344596), (62, 327922), (118, 172298), (124, 163961), (217, 93692), (236, 86149), (397, 51212), (413, 49228), (434, 46846), (794, 25606), (826, 24614), (868, 23423), (1588, 12803), (1652, 12307), (1829, 11116), (2779, 7316), (3658, 5558)]