81768570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2953}}^1$

素因数の和:3047

約数の個数: 64

約数和(自身を含む): 214389504

約数和(自身を除く): 132620934

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 71, 78, 130, 142, 195, 213, 355, 390, 426, 710, 923, 1065, 1846, 2130, 2769, 2953, 4615, 5538, 5906, 8859, 9230, 13845, 14765, 17718, 27690, 29530, 38389, 44295, 76778, 88590, 115167, 191945, 209663, 230334, 383890, 419326, 575835, 628989, 1048315, 1151670, 1257978, 2096630, 2725619, 3144945, 5451238, 6289890, 8176857, 13628095, 16353714, 27256190, 40884285, 81768570]

約数ペア:

[(1, 81768570), (2, 40884285), (3, 27256190), (5, 16353714), (6, 13628095), (10, 8176857), (13, 6289890), (15, 5451238), (26, 3144945), (30, 2725619), (39, 2096630), (65, 1257978), (71, 1151670), (78, 1048315), (130, 628989), (142, 575835), (195, 419326), (213, 383890), (355, 230334), (390, 209663), (426, 191945), (710, 115167), (923, 88590), (1065, 76778), (1846, 44295), (2130, 38389), (2769, 29530), (2953, 27690), (4615, 17718), (5538, 14765), (5906, 13845), (8859, 9230)]