201765980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25033}}^1$

素因数の和:25086

約数の個数: 48

約数和(自身を含む): 471039744

約数和(自身を除く): 269273764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 25033, 50066, 100132, 125165, 250330, 325429, 500660, 650858, 776023, 1301716, 1552046, 1627145, 3104092, 3254290, 3880115, 6508580, 7760230, 10088299, 15520460, 20176598, 40353196, 50441495, 100882990, 201765980]

約数ペア:

[(1, 201765980), (2, 100882990), (4, 50441495), (5, 40353196), (10, 20176598), (13, 15520460), (20, 10088299), (26, 7760230), (31, 6508580), (52, 3880115), (62, 3254290), (65, 3104092), (124, 1627145), (130, 1552046), (155, 1301716), (260, 776023), (310, 650858), (403, 500660), (620, 325429), (806, 250330), (1612, 125165), (2015, 100132), (4030, 50066), (8060, 25033)]