1213796620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1\times {\mathrm{1303}}^1$

素因数の和:2350

約数の個数: 48

約数和(自身を含む): 2607833088

約数和(自身を除く): 1394036468

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 991, 1303, 1982, 2606, 3964, 4955, 5212, 6515, 9910, 13030, 19820, 26060, 46577, 61241, 93154, 122482, 186308, 232885, 244964, 306205, 465770, 612410, 931540, 1224820, 1291273, 2582546, 5165092, 6456365, 12912730, 25825460, 60689831, 121379662, 242759324, 303449155, 606898310, 1213796620]

約数ペア:

[(1, 1213796620), (2, 606898310), (4, 303449155), (5, 242759324), (10, 121379662), (20, 60689831), (47, 25825460), (94, 12912730), (188, 6456365), (235, 5165092), (470, 2582546), (940, 1291273), (991, 1224820), (1303, 931540), (1982, 612410), (2606, 465770), (3964, 306205), (4955, 244964), (5212, 232885), (6515, 186308), (9910, 122482), (13030, 93154), (19820, 61241), (26060, 46577)]