21400560

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29723}}^1$

素因数の和:29742

約数の個数: 60

約数和(自身を含む): 71872632

約数和(自身を除く): 50472072

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29723, 59446, 89169, 118892, 148615, 178338, 237784, 267507, 297230, 356676, 445845, 475568, 535014, 594460, 713352, 891690, 1070028, 1188920, 1337535, 1426704, 1783380, 2140056, 2377840, 2675070, 3566760, 4280112, 5350140, 7133520, 10700280, 21400560]

約数ペア:

[(1, 21400560), (2, 10700280), (3, 7133520), (4, 5350140), (5, 4280112), (6, 3566760), (8, 2675070), (9, 2377840), (10, 2140056), (12, 1783380), (15, 1426704), (16, 1337535), (18, 1188920), (20, 1070028), (24, 891690), (30, 713352), (36, 594460), (40, 535014), (45, 475568), (48, 445845), (60, 356676), (72, 297230), (80, 267507), (90, 237784), (120, 178338), (144, 148615), (180, 118892), (240, 89169), (360, 59446), (720, 29723)]