22019920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 56996352

約数和(自身を除く): 34976432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 683, 806, 1040, 1240, 1366, 1612, 2015, 2480, 2732, 3224, 3415, 4030, 5464, 6448, 6830, 8060, 8879, 10928, 13660, 16120, 17758, 21173, 27320, 32240, 35516, 42346, 44395, 54640, 71032, 84692, 88790, 105865, 142064, 169384, 177580, 211730, 275249, 338768, 355160, 423460, 550498, 710320, 846920, 1100996, 1376245, 1693840, 2201992, 2752490, 4403984, 5504980, 11009960, 22019920]

約数ペア:

[(1, 22019920), (2, 11009960), (4, 5504980), (5, 4403984), (8, 2752490), (10, 2201992), (13, 1693840), (16, 1376245), (20, 1100996), (26, 846920), (31, 710320), (40, 550498), (52, 423460), (62, 355160), (65, 338768), (80, 275249), (104, 211730), (124, 177580), (130, 169384), (155, 142064), (208, 105865), (248, 88790), (260, 84692), (310, 71032), (403, 54640), (496, 44395), (520, 42346), (620, 35516), (683, 32240), (806, 27320), (1040, 21173), (1240, 17758), (1366, 16120), (1612, 13660), (2015, 10928), (2480, 8879), (2732, 8060), (3224, 6830), (3415, 6448), (4030, 5464)]