31891380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 93671424

約数和(自身を除く): 61780044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 47, 60, 86, 94, 129, 141, 172, 188, 215, 235, 258, 263, 282, 430, 470, 516, 526, 564, 645, 705, 789, 860, 940, 1052, 1290, 1315, 1410, 1578, 2021, 2580, 2630, 2820, 3156, 3945, 4042, 5260, 6063, 7890, 8084, 10105, 11309, 12126, 12361, 15780, 20210, 22618, 24252, 24722, 30315, 33927, 37083, 40420, 45236, 49444, 56545, 60630, 61805, 67854, 74166, 113090, 121260, 123610, 135708, 148332, 169635, 185415, 226180, 247220, 339270, 370830, 531523, 678540, 741660, 1063046, 1594569, 2126092, 2657615, 3189138, 5315230, 6378276, 7972845, 10630460, 15945690, 31891380]

約数ペア:

[(1, 31891380), (2, 15945690), (3, 10630460), (4, 7972845), (5, 6378276), (6, 5315230), (10, 3189138), (12, 2657615), (15, 2126092), (20, 1594569), (30, 1063046), (43, 741660), (47, 678540), (60, 531523), (86, 370830), (94, 339270), (129, 247220), (141, 226180), (172, 185415), (188, 169635), (215, 148332), (235, 135708), (258, 123610), (263, 121260), (282, 113090), (430, 74166), (470, 67854), (516, 61805), (526, 60630), (564, 56545), (645, 49444), (705, 45236), (789, 40420), (860, 37083), (940, 33927), (1052, 30315), (1290, 24722), (1315, 24252), (1410, 22618), (1578, 20210), (2021, 15780), (2580, 12361), (2630, 12126), (2820, 11309), (3156, 10105), (3945, 8084), (4042, 7890), (5260, 6063)]