21070320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{87793}}^1$

素因数の和:87809

約数の個数: 40

約数和(自身を含む): 65318736

約数和(自身を除く): 44248416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 87793, 175586, 263379, 351172, 438965, 526758, 702344, 877930, 1053516, 1316895, 1404688, 1755860, 2107032, 2633790, 3511720, 4214064, 5267580, 7023440, 10535160, 21070320]

約数ペア:

[(1, 21070320), (2, 10535160), (3, 7023440), (4, 5267580), (5, 4214064), (6, 3511720), (8, 2633790), (10, 2107032), (12, 1755860), (15, 1404688), (16, 1316895), (20, 1053516), (24, 877930), (30, 702344), (40, 526758), (48, 438965), (60, 351172), (80, 263379), (120, 175586), (240, 87793)]