78748380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1091}}^1$

素因数の和:1507

約数の個数: 72

約数和(自身を含む): 239685264

約数和(自身を除く): 160936884

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 401, 802, 1091, 1203, 1604, 2005, 2182, 2406, 3273, 3609, 4010, 4364, 4812, 5455, 6015, 6546, 7218, 8020, 9819, 10910, 12030, 13092, 14436, 16365, 18045, 19638, 21820, 24060, 32730, 36090, 39276, 49095, 65460, 72180, 98190, 196380, 437491, 874982, 1312473, 1749964, 2187455, 2624946, 3937419, 4374910, 5249892, 6562365, 7874838, 8749820, 13124730, 15749676, 19687095, 26249460, 39374190, 78748380]

約数ペア:

[(1, 78748380), (2, 39374190), (3, 26249460), (4, 19687095), (5, 15749676), (6, 13124730), (9, 8749820), (10, 7874838), (12, 6562365), (15, 5249892), (18, 4374910), (20, 3937419), (30, 2624946), (36, 2187455), (45, 1749964), (60, 1312473), (90, 874982), (180, 437491), (401, 196380), (802, 98190), (1091, 72180), (1203, 65460), (1604, 49095), (2005, 39276), (2182, 36090), (2406, 32730), (3273, 24060), (3609, 21820), (4010, 19638), (4364, 18045), (4812, 16365), (5455, 14436), (6015, 13092), (6546, 12030), (7218, 10910), (8020, 9819)]