78875890

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 144322560

約数和(自身を除く): 65446670

約数列:

[1, 2, 5, 10, 127, 173, 254, 346, 359, 635, 718, 865, 1270, 1730, 1795, 3590, 21971, 43942, 45593, 62107, 91186, 109855, 124214, 219710, 227965, 310535, 455930, 621070, 7887589, 15775178, 39437945, 78875890]

約数ペア:

[(1, 78875890), (2, 39437945), (5, 15775178), (10, 7887589), (127, 621070), (173, 455930), (254, 310535), (346, 227965), (359, 219710), (635, 124214), (718, 109855), (865, 91186), (1270, 62107), (1730, 45593), (1795, 43942), (3590, 21971)]