21739079840

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4382879}}^1$

素因数の和:4382925

約数の個数: 48

約数和(自身を含む): 53015316480

約数和(自身を除く): 31276236640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 4382879, 8765758, 17531516, 21914395, 35063032, 43828790, 70126064, 87657580, 135869249, 140252128, 175315160, 271738498, 350630320, 543476996, 679346245, 701260640, 1086953992, 1358692490, 2173907984, 2717384980, 4347815968, 5434769960, 10869539920, 21739079840]

約数ペア:

[(1, 21739079840), (2, 10869539920), (4, 5434769960), (5, 4347815968), (8, 2717384980), (10, 2173907984), (16, 1358692490), (20, 1086953992), (31, 701260640), (32, 679346245), (40, 543476996), (62, 350630320), (80, 271738498), (124, 175315160), (155, 140252128), (160, 135869249), (248, 87657580), (310, 70126064), (496, 43828790), (620, 35063032), (992, 21914395), (1240, 17531516), (2480, 8765758), (4960, 4382879)]