31604940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2473}}^1$

素因数の和:2559

約数の個数: 72

約数和(自身を含む): 97257888

約数和(自身を除く): 65652948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 710, 852, 1065, 1278, 1420, 2130, 2473, 2556, 3195, 4260, 4946, 6390, 7419, 9892, 12365, 12780, 14838, 22257, 24730, 29676, 37095, 44514, 49460, 74190, 89028, 111285, 148380, 175583, 222570, 351166, 445140, 526749, 702332, 877915, 1053498, 1580247, 1755830, 2106996, 2633745, 3160494, 3511660, 5267490, 6320988, 7901235, 10534980, 15802470, 31604940]

約数ペア:

[(1, 31604940), (2, 15802470), (3, 10534980), (4, 7901235), (5, 6320988), (6, 5267490), (9, 3511660), (10, 3160494), (12, 2633745), (15, 2106996), (18, 1755830), (20, 1580247), (30, 1053498), (36, 877915), (45, 702332), (60, 526749), (71, 445140), (90, 351166), (142, 222570), (180, 175583), (213, 148380), (284, 111285), (355, 89028), (426, 74190), (639, 49460), (710, 44514), (852, 37095), (1065, 29676), (1278, 24730), (1420, 22257), (2130, 14838), (2473, 12780), (2556, 12365), (3195, 9892), (4260, 7419), (4946, 6390)]