38428880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{163}}^1\times {\mathrm{421}}^1$

素因数の和:604

約数の個数: 80

約数和(自身を含む): 102981504

約数和(自身を除く): 64552624

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 163, 280, 326, 421, 560, 652, 815, 842, 1141, 1304, 1630, 1684, 2105, 2282, 2608, 2947, 3260, 3368, 4210, 4564, 5705, 5894, 6520, 6736, 8420, 9128, 11410, 11788, 13040, 14735, 16840, 18256, 22820, 23576, 29470, 33680, 45640, 47152, 58940, 68623, 91280, 117880, 137246, 235760, 274492, 343115, 480361, 548984, 686230, 960722, 1097968, 1372460, 1921444, 2401805, 2744920, 3842888, 4803610, 5489840, 7685776, 9607220, 19214440, 38428880]

約数ペア:

[(1, 38428880), (2, 19214440), (4, 9607220), (5, 7685776), (7, 5489840), (8, 4803610), (10, 3842888), (14, 2744920), (16, 2401805), (20, 1921444), (28, 1372460), (35, 1097968), (40, 960722), (56, 686230), (70, 548984), (80, 480361), (112, 343115), (140, 274492), (163, 235760), (280, 137246), (326, 117880), (421, 91280), (560, 68623), (652, 58940), (815, 47152), (842, 45640), (1141, 33680), (1304, 29470), (1630, 23576), (1684, 22820), (2105, 18256), (2282, 16840), (2608, 14735), (2947, 13040), (3260, 11788), (3368, 11410), (4210, 9128), (4564, 8420), (5705, 6736), (5894, 6520)]