650127920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1607}}^1$

素因数の和:2022

約数の個数: 80

約数和(自身を含む): 1633020480

約数和(自身を除く): 982892560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 389, 520, 778, 1040, 1556, 1607, 1945, 3112, 3214, 3890, 5057, 6224, 6428, 7780, 8035, 10114, 12856, 15560, 16070, 20228, 20891, 25285, 25712, 31120, 32140, 40456, 41782, 50570, 64280, 80912, 83564, 101140, 104455, 128560, 167128, 202280, 208910, 334256, 404560, 417820, 625123, 835640, 1250246, 1671280, 2500492, 3125615, 5000984, 6251230, 8126599, 10001968, 12502460, 16253198, 25004920, 32506396, 40632995, 50009840, 65012792, 81265990, 130025584, 162531980, 325063960, 650127920]

約数ペア:

[(1, 650127920), (2, 325063960), (4, 162531980), (5, 130025584), (8, 81265990), (10, 65012792), (13, 50009840), (16, 40632995), (20, 32506396), (26, 25004920), (40, 16253198), (52, 12502460), (65, 10001968), (80, 8126599), (104, 6251230), (130, 5000984), (208, 3125615), (260, 2500492), (389, 1671280), (520, 1250246), (778, 835640), (1040, 625123), (1556, 417820), (1607, 404560), (1945, 334256), (3112, 208910), (3214, 202280), (3890, 167128), (5057, 128560), (6224, 104455), (6428, 101140), (7780, 83564), (8035, 80912), (10114, 64280), (12856, 50570), (15560, 41782), (16070, 40456), (20228, 32140), (20891, 31120), (25285, 25712)]