2021371775

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{367}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 2661258240

約数和(自身を除く): 639886465

約数列:

[1, 5, 25, 29, 71, 107, 145, 355, 367, 535, 725, 1775, 1835, 2059, 2675, 3103, 7597, 9175, 10295, 10643, 15515, 26057, 37985, 39269, 51475, 53215, 77575, 130285, 189925, 196345, 220313, 266075, 651425, 755653, 981725, 1101565, 1138801, 2788099, 3778265, 5507825, 5694005, 13940495, 18891325, 28470025, 69702475, 80854871, 404274355, 2021371775]

約数ペア:

[(1, 2021371775), (5, 404274355), (25, 80854871), (29, 69702475), (71, 28470025), (107, 18891325), (145, 13940495), (355, 5694005), (367, 5507825), (535, 3778265), (725, 2788099), (1775, 1138801), (1835, 1101565), (2059, 981725), (2675, 755653), (3103, 651425), (7597, 266075), (9175, 220313), (10295, 196345), (10643, 189925), (15515, 130285), (26057, 77575), (37985, 53215), (39269, 51475)]