81438615

素因数分解:

$3^4\times 5^1\times {\mathrm{211}}^1\times {\mathrm{953}}^1$

素因数の和:1181

約数の個数: 40

約数和(自身を含む): 146832048

約数和(自身を除く): 65393433

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 211, 405, 633, 953, 1055, 1899, 2859, 3165, 4765, 5697, 8577, 9495, 14295, 17091, 25731, 28485, 42885, 77193, 85455, 128655, 201083, 385965, 603249, 1005415, 1809747, 3016245, 5429241, 9048735, 16287723, 27146205, 81438615]

約数ペア:

[(1, 81438615), (3, 27146205), (5, 16287723), (9, 9048735), (15, 5429241), (27, 3016245), (45, 1809747), (81, 1005415), (135, 603249), (211, 385965), (405, 201083), (633, 128655), (953, 85455), (1055, 77193), (1899, 42885), (2859, 28485), (3165, 25731), (4765, 17091), (5697, 14295), (8577, 9495)]