20177990175

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{2557}}^1\times {\mathrm{15031}}^1$

素因数の和:17608

約数の個数: 48

約数和(自身を含む): 38144241152

約数和(自身を除く): 17966250977

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 2557, 7671, 12785, 15031, 17899, 38355, 45093, 53697, 63925, 75155, 89495, 105217, 191775, 225465, 268485, 315651, 375775, 447475, 526085, 1127325, 1342425, 1578255, 2630425, 7891275, 38434267, 115302801, 192171335, 269039869, 576514005, 807119607, 960856675, 1345199345, 2882570025, 4035598035, 6725996725, 20177990175]

約数ペア:

[(1, 20177990175), (3, 6725996725), (5, 4035598035), (7, 2882570025), (15, 1345199345), (21, 960856675), (25, 807119607), (35, 576514005), (75, 269039869), (105, 192171335), (175, 115302801), (525, 38434267), (2557, 7891275), (7671, 2630425), (12785, 1578255), (15031, 1342425), (17899, 1127325), (38355, 526085), (45093, 447475), (53697, 375775), (63925, 315651), (75155, 268485), (89495, 225465), (105217, 191775)]