78639975

素因数分解:

$3^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{1931}}^1$

素因数の和:2128

約数の個数: 36

約数和(自身を含む): 141704472

約数和(自身を除く): 63064497

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 181, 225, 543, 905, 1629, 1931, 2715, 4525, 5793, 8145, 9655, 13575, 17379, 28965, 40725, 48275, 86895, 144825, 349511, 434475, 1048533, 1747555, 3145599, 5242665, 8737775, 15727995, 26213325, 78639975]

約数ペア:

[(1, 78639975), (3, 26213325), (5, 15727995), (9, 8737775), (15, 5242665), (25, 3145599), (45, 1747555), (75, 1048533), (181, 434475), (225, 349511), (543, 144825), (905, 86895), (1629, 48275), (1931, 40725), (2715, 28965), (4525, 17379), (5793, 13575), (8145, 9655)]