978012890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{72823}}^1$

素因数の和:72926

約数の個数: 32

約数和(自身を含む): 1887598080

約数和(自身を除く): 909585190

約数列:

[1, 2, 5, 10, 17, 34, 79, 85, 158, 170, 395, 790, 1343, 2686, 6715, 13430, 72823, 145646, 364115, 728230, 1237991, 2475982, 5753017, 6189955, 11506034, 12379910, 28765085, 57530170, 97801289, 195602578, 489006445, 978012890]

約数ペア:

[(1, 978012890), (2, 489006445), (5, 195602578), (10, 97801289), (17, 57530170), (34, 28765085), (79, 12379910), (85, 11506034), (158, 6189955), (170, 5753017), (395, 2475982), (790, 1237991), (1343, 728230), (2686, 364115), (6715, 145646), (13430, 72823)]