78806650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3911}}^1$

素因数の和:3967

約数の個数: 48

約数和(自身を含む): 162989568

約数和(自身を除く): 84182918

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 130, 155, 310, 325, 403, 650, 775, 806, 1550, 2015, 3911, 4030, 7822, 10075, 19555, 20150, 39110, 50843, 97775, 101686, 121241, 195550, 242482, 254215, 508430, 606205, 1212410, 1271075, 1576133, 2542150, 3031025, 3152266, 6062050, 7880665, 15761330, 39403325, 78806650]

約数ペア:

[(1, 78806650), (2, 39403325), (5, 15761330), (10, 7880665), (13, 6062050), (25, 3152266), (26, 3031025), (31, 2542150), (50, 1576133), (62, 1271075), (65, 1212410), (130, 606205), (155, 508430), (310, 254215), (325, 242482), (403, 195550), (650, 121241), (775, 101686), (806, 97775), (1550, 50843), (2015, 39110), (3911, 20150), (4030, 19555), (7822, 10075)]