1407980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 48

約数和(自身を含む): 3447360

約数和(自身を除く): 2039380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 113, 140, 178, 226, 356, 445, 452, 565, 623, 791, 890, 1130, 1246, 1582, 1780, 2260, 2492, 3115, 3164, 3955, 6230, 7910, 10057, 12460, 15820, 20114, 40228, 50285, 70399, 100570, 140798, 201140, 281596, 351995, 703990, 1407980]

約数ペア:

[(1, 1407980), (2, 703990), (4, 351995), (5, 281596), (7, 201140), (10, 140798), (14, 100570), (20, 70399), (28, 50285), (35, 40228), (70, 20114), (89, 15820), (113, 12460), (140, 10057), (178, 7910), (226, 6230), (356, 3955), (445, 3164), (452, 3115), (565, 2492), (623, 2260), (791, 1780), (890, 1582), (1130, 1246)]