128757123

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 208765440

約数和(自身を除く): 80008317

約数列:

[1, 3, 9, 11, 33, 79, 99, 101, 163, 237, 303, 489, 711, 869, 909, 1111, 1467, 1793, 2607, 3333, 5379, 7821, 7979, 9999, 12877, 16137, 16463, 23937, 38631, 49389, 71811, 87769, 115893, 141647, 148167, 181093, 263307, 424941, 543279, 789921, 1274823, 1300577, 1629837, 3901731, 11705193, 14306347, 42919041, 128757123]

約数ペア:

[(1, 128757123), (3, 42919041), (9, 14306347), (11, 11705193), (33, 3901731), (79, 1629837), (99, 1300577), (101, 1274823), (163, 789921), (237, 543279), (303, 424941), (489, 263307), (711, 181093), (869, 148167), (909, 141647), (1111, 115893), (1467, 87769), (1793, 71811), (2607, 49389), (3333, 38631), (5379, 23937), (7821, 16463), (7979, 16137), (9999, 12877)]