20218832028

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{421331}}^1$

素因数の和:421415

約数の個数: 72

約数和(自身を含む): 53984426496

約数和(自身を除く): 33765594468

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 43, 62, 86, 93, 124, 129, 172, 186, 258, 279, 372, 387, 516, 558, 774, 1116, 1333, 1548, 2666, 3999, 5332, 7998, 11997, 15996, 23994, 47988, 421331, 842662, 1263993, 1685324, 2527986, 3791979, 5055972, 7583958, 13061261, 15167916, 18117233, 26122522, 36234466, 39183783, 52245044, 54351699, 72468932, 78367566, 108703398, 117551349, 156735132, 163055097, 217406796, 235102698, 326110194, 470205396, 561634223, 652220388, 1123268446, 1684902669, 2246536892, 3369805338, 5054708007, 6739610676, 10109416014, 20218832028]

約数ペア:

[(1, 20218832028), (2, 10109416014), (3, 6739610676), (4, 5054708007), (6, 3369805338), (9, 2246536892), (12, 1684902669), (18, 1123268446), (31, 652220388), (36, 561634223), (43, 470205396), (62, 326110194), (86, 235102698), (93, 217406796), (124, 163055097), (129, 156735132), (172, 117551349), (186, 108703398), (258, 78367566), (279, 72468932), (372, 54351699), (387, 52245044), (516, 39183783), (558, 36234466), (774, 26122522), (1116, 18117233), (1333, 15167916), (1548, 13061261), (2666, 7583958), (3999, 5055972), (5332, 3791979), (7998, 2527986), (11997, 1685324), (15996, 1263993), (23994, 842662), (47988, 421331)]