19993140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3583}}^1$

素因数の和:3629

約数の個数: 72

約数和(自身を含む): 62619648

約数和(自身を除く): 42626508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 3583, 5580, 7166, 10749, 14332, 17915, 21498, 32247, 35830, 42996, 53745, 64494, 71660, 107490, 111073, 128988, 161235, 214980, 222146, 322470, 333219, 444292, 555365, 644940, 666438, 999657, 1110730, 1332876, 1666095, 1999314, 2221460, 3332190, 3998628, 4998285, 6664380, 9996570, 19993140]

約数ペア:

[(1, 19993140), (2, 9996570), (3, 6664380), (4, 4998285), (5, 3998628), (6, 3332190), (9, 2221460), (10, 1999314), (12, 1666095), (15, 1332876), (18, 1110730), (20, 999657), (30, 666438), (31, 644940), (36, 555365), (45, 444292), (60, 333219), (62, 322470), (90, 222146), (93, 214980), (124, 161235), (155, 128988), (180, 111073), (186, 107490), (279, 71660), (310, 64494), (372, 53745), (465, 42996), (558, 35830), (620, 32247), (930, 21498), (1116, 17915), (1395, 14332), (1860, 10749), (2790, 7166), (3583, 5580)]