221015120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89119}}^1$

素因数の和:89163

約数の個数: 40

約数和(自身を含む): 530442240

約数和(自身を除く): 309427120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 89119, 178238, 356476, 445595, 712952, 891190, 1425904, 1782380, 2762689, 3564760, 5525378, 7129520, 11050756, 13813445, 22101512, 27626890, 44203024, 55253780, 110507560, 221015120]

約数ペア:

[(1, 221015120), (2, 110507560), (4, 55253780), (5, 44203024), (8, 27626890), (10, 22101512), (16, 13813445), (20, 11050756), (31, 7129520), (40, 5525378), (62, 3564760), (80, 2762689), (124, 1782380), (155, 1425904), (248, 891190), (310, 712952), (496, 445595), (620, 356476), (1240, 178238), (2480, 89119)]