81339345

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:594

約数の個数: 48

約数和(自身を含む): 147148560

約数和(自身を除く): 65809215

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 157, 261, 397, 435, 471, 785, 1191, 1305, 1413, 1985, 2355, 3573, 4553, 5955, 7065, 11513, 13659, 17865, 22765, 34539, 40977, 57565, 62329, 68295, 103617, 172695, 186987, 204885, 311645, 518085, 560961, 934935, 1807541, 2804805, 5422623, 9037705, 16267869, 27113115, 81339345]

約数ペア:

[(1, 81339345), (3, 27113115), (5, 16267869), (9, 9037705), (15, 5422623), (29, 2804805), (45, 1807541), (87, 934935), (145, 560961), (157, 518085), (261, 311645), (397, 204885), (435, 186987), (471, 172695), (785, 103617), (1191, 68295), (1305, 62329), (1413, 57565), (1985, 40977), (2355, 34539), (3573, 22765), (4553, 17865), (5955, 13659), (7065, 11513)]