20193675

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{383}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 36188160

約数和(自身を除く): 15994485

約数列:

[1, 3, 5, 15, 19, 25, 37, 57, 75, 95, 111, 185, 285, 383, 475, 555, 703, 925, 1149, 1425, 1915, 2109, 2775, 3515, 5745, 7277, 9575, 10545, 14171, 17575, 21831, 28725, 36385, 42513, 52725, 70855, 109155, 181925, 212565, 269249, 354275, 545775, 807747, 1062825, 1346245, 4038735, 6731225, 20193675]

約数ペア:

[(1, 20193675), (3, 6731225), (5, 4038735), (15, 1346245), (19, 1062825), (25, 807747), (37, 545775), (57, 354275), (75, 269249), (95, 212565), (111, 181925), (185, 109155), (285, 70855), (383, 52725), (475, 42513), (555, 36385), (703, 28725), (925, 21831), (1149, 17575), (1425, 14171), (1915, 10545), (2109, 9575), (2775, 7277), (3515, 5745)]