72090123

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{487}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 120165120

約数和(自身を除く): 48074997

約数列:

[1, 3, 7, 19, 21, 49, 53, 57, 133, 147, 159, 371, 399, 487, 931, 1007, 1113, 1461, 2597, 2793, 3021, 3409, 7049, 7791, 9253, 10227, 21147, 23863, 25811, 27759, 49343, 64771, 71589, 77433, 148029, 180677, 194313, 453397, 490409, 542031, 1264739, 1360191, 1471227, 3432863, 3794217, 10298589, 24030041, 72090123]

約数ペア:

[(1, 72090123), (3, 24030041), (7, 10298589), (19, 3794217), (21, 3432863), (49, 1471227), (53, 1360191), (57, 1264739), (133, 542031), (147, 490409), (159, 453397), (371, 194313), (399, 180677), (487, 148029), (931, 77433), (1007, 71589), (1113, 64771), (1461, 49343), (2597, 27759), (2793, 25811), (3021, 23863), (3409, 21147), (7049, 10227), (7791, 9253)]