21689520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90373}}^1$

素因数の和:90389

約数の個数: 40

約数和(自身を含む): 67238256

約数和(自身を除く): 45548736

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90373, 180746, 271119, 361492, 451865, 542238, 722984, 903730, 1084476, 1355595, 1445968, 1807460, 2168952, 2711190, 3614920, 4337904, 5422380, 7229840, 10844760, 21689520]

約数ペア:

[(1, 21689520), (2, 10844760), (3, 7229840), (4, 5422380), (5, 4337904), (6, 3614920), (8, 2711190), (10, 2168952), (12, 1807460), (15, 1445968), (16, 1355595), (20, 1084476), (24, 903730), (30, 722984), (40, 542238), (48, 451865), (60, 361492), (80, 271119), (120, 180746), (240, 90373)]