2013365680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{19801}}^1$

素因数の和:19886

約数の個数: 80

約数和(自身を含む): 4950183168

約数和(自身を除く): 2936817488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 41, 62, 80, 82, 124, 155, 164, 205, 248, 310, 328, 410, 496, 620, 656, 820, 1240, 1271, 1640, 2480, 2542, 3280, 5084, 6355, 10168, 12710, 19801, 20336, 25420, 39602, 50840, 79204, 99005, 101680, 158408, 198010, 316816, 396020, 613831, 792040, 811841, 1227662, 1584080, 1623682, 2455324, 3069155, 3247364, 4059205, 4910648, 6138310, 6494728, 8118410, 9821296, 12276620, 12989456, 16236820, 24553240, 25167071, 32473640, 49106480, 50334142, 64947280, 100668284, 125835355, 201336568, 251670710, 402673136, 503341420, 1006682840, 2013365680]

約数ペア:

[(1, 2013365680), (2, 1006682840), (4, 503341420), (5, 402673136), (8, 251670710), (10, 201336568), (16, 125835355), (20, 100668284), (31, 64947280), (40, 50334142), (41, 49106480), (62, 32473640), (80, 25167071), (82, 24553240), (124, 16236820), (155, 12989456), (164, 12276620), (205, 9821296), (248, 8118410), (310, 6494728), (328, 6138310), (410, 4910648), (496, 4059205), (620, 3247364), (656, 3069155), (820, 2455324), (1240, 1623682), (1271, 1584080), (1640, 1227662), (2480, 811841), (2542, 792040), (3280, 613831), (5084, 396020), (6355, 316816), (10168, 198010), (12710, 158408), (19801, 101680), (20336, 99005), (25420, 79204), (39602, 50840)]