78177540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26591}}^1$

素因数の和:26617

約数の個数: 72

約数和(自身を含む): 254644992

約数和(自身を除く): 176467452

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26591, 53182, 79773, 106364, 132955, 159546, 186137, 265910, 319092, 372274, 398865, 531820, 558411, 744548, 797730, 930685, 1116822, 1302959, 1595460, 1861370, 2233644, 2605918, 2792055, 3722740, 3908877, 5211836, 5584110, 6514795, 7817754, 11168220, 13029590, 15635508, 19544385, 26059180, 39088770, 78177540]

約数ペア:

[(1, 78177540), (2, 39088770), (3, 26059180), (4, 19544385), (5, 15635508), (6, 13029590), (7, 11168220), (10, 7817754), (12, 6514795), (14, 5584110), (15, 5211836), (20, 3908877), (21, 3722740), (28, 2792055), (30, 2605918), (35, 2233644), (42, 1861370), (49, 1595460), (60, 1302959), (70, 1116822), (84, 930685), (98, 797730), (105, 744548), (140, 558411), (147, 531820), (196, 398865), (210, 372274), (245, 319092), (294, 265910), (420, 186137), (490, 159546), (588, 132955), (735, 106364), (980, 79773), (1470, 53182), (2940, 26591)]