2071420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:310

約数の個数: 48

約数和(自身を含む): 4854528

約数和(自身を除く): 2783108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 257, 260, 310, 403, 514, 620, 806, 1028, 1285, 1612, 2015, 2570, 3341, 4030, 5140, 6682, 7967, 8060, 13364, 15934, 16705, 31868, 33410, 39835, 66820, 79670, 103571, 159340, 207142, 414284, 517855, 1035710, 2071420]

約数ペア:

[(1, 2071420), (2, 1035710), (4, 517855), (5, 414284), (10, 207142), (13, 159340), (20, 103571), (26, 79670), (31, 66820), (52, 39835), (62, 33410), (65, 31868), (124, 16705), (130, 15934), (155, 13364), (257, 8060), (260, 7967), (310, 6682), (403, 5140), (514, 4030), (620, 3341), (806, 2570), (1028, 2015), (1285, 1612)]