78581020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{983}}^1$

素因数の和:1570

約数の個数: 48

約数和(自身を含む): 189116928

約数和(自身を除く): 110535908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 571, 983, 1142, 1966, 2284, 2855, 3932, 3997, 4915, 5710, 6881, 7994, 9830, 11420, 13762, 15988, 19660, 19985, 27524, 34405, 39970, 68810, 79940, 137620, 561293, 1122586, 2245172, 2806465, 3929051, 5612930, 7858102, 11225860, 15716204, 19645255, 39290510, 78581020]

約数ペア:

[(1, 78581020), (2, 39290510), (4, 19645255), (5, 15716204), (7, 11225860), (10, 7858102), (14, 5612930), (20, 3929051), (28, 2806465), (35, 2245172), (70, 1122586), (140, 561293), (571, 137620), (983, 79940), (1142, 68810), (1966, 39970), (2284, 34405), (2855, 27524), (3932, 19985), (3997, 19660), (4915, 15988), (5710, 13762), (6881, 11420), (7994, 9830)]