71980155

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1733}}^1$

素因数の和:1828

約数の個数: 48

約数和(自身を含む): 136334016

約数和(自身を除く): 64353861

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 71, 117, 195, 213, 355, 585, 639, 923, 1065, 1733, 2769, 3195, 4615, 5199, 8307, 8665, 13845, 15597, 22529, 25995, 41535, 67587, 77985, 112645, 123043, 202761, 337935, 369129, 615215, 1013805, 1107387, 1599559, 1845645, 4798677, 5536935, 7997795, 14396031, 23993385, 71980155]

約数ペア:

[(1, 71980155), (3, 23993385), (5, 14396031), (9, 7997795), (13, 5536935), (15, 4798677), (39, 1845645), (45, 1599559), (65, 1107387), (71, 1013805), (117, 615215), (195, 369129), (213, 337935), (355, 202761), (585, 123043), (639, 112645), (923, 77985), (1065, 67587), (1733, 41535), (2769, 25995), (3195, 22529), (4615, 15597), (5199, 13845), (8307, 8665)]