131566185

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{557}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 237641040

約数和(自身を除く): 106074855

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 181, 261, 435, 543, 557, 905, 1305, 1629, 1671, 2715, 2785, 5013, 5249, 8145, 8355, 15747, 16153, 25065, 26245, 47241, 48459, 78735, 80765, 100817, 145377, 236205, 242295, 302451, 504085, 726885, 907353, 1512255, 2923693, 4536765, 8771079, 14618465, 26313237, 43855395, 131566185]

約数ペア:

[(1, 131566185), (3, 43855395), (5, 26313237), (9, 14618465), (15, 8771079), (29, 4536765), (45, 2923693), (87, 1512255), (145, 907353), (181, 726885), (261, 504085), (435, 302451), (543, 242295), (557, 236205), (905, 145377), (1305, 100817), (1629, 80765), (1671, 78735), (2715, 48459), (2785, 47241), (5013, 26245), (5249, 25065), (8145, 16153), (8355, 15747)]