71308980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{941}}^1$

素因数の和:1377

約数の個数: 72

約数和(自身を含む): 217048104

約数和(自身を除く): 145739124

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 421, 842, 941, 1263, 1684, 1882, 2105, 2526, 2823, 3764, 3789, 4210, 4705, 5052, 5646, 6315, 7578, 8420, 8469, 9410, 11292, 12630, 14115, 15156, 16938, 18820, 18945, 25260, 28230, 33876, 37890, 42345, 56460, 75780, 84690, 169380, 396161, 792322, 1188483, 1584644, 1980805, 2376966, 3565449, 3961610, 4753932, 5942415, 7130898, 7923220, 11884830, 14261796, 17827245, 23769660, 35654490, 71308980]

約数ペア:

[(1, 71308980), (2, 35654490), (3, 23769660), (4, 17827245), (5, 14261796), (6, 11884830), (9, 7923220), (10, 7130898), (12, 5942415), (15, 4753932), (18, 3961610), (20, 3565449), (30, 2376966), (36, 1980805), (45, 1584644), (60, 1188483), (90, 792322), (180, 396161), (421, 169380), (842, 84690), (941, 75780), (1263, 56460), (1684, 42345), (1882, 37890), (2105, 33876), (2526, 28230), (2823, 25260), (3764, 18945), (3789, 18820), (4210, 16938), (4705, 15156), (5052, 14115), (5646, 12630), (6315, 11292), (7578, 9410), (8420, 8469)]