21689040

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90371}}^1$

素因数の和:90387

約数の個数: 40

約数和(自身を含む): 67236768

約数和(自身を除く): 45547728

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90371, 180742, 271113, 361484, 451855, 542226, 722968, 903710, 1084452, 1355565, 1445936, 1807420, 2168904, 2711130, 3614840, 4337808, 5422260, 7229680, 10844520, 21689040]

約数ペア:

[(1, 21689040), (2, 10844520), (3, 7229680), (4, 5422260), (5, 4337808), (6, 3614840), (8, 2711130), (10, 2168904), (12, 1807420), (15, 1445936), (16, 1355565), (20, 1084452), (24, 903710), (30, 722968), (40, 542226), (48, 451855), (60, 361484), (80, 271113), (120, 180742), (240, 90371)]