2920820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 7246848

約数和(自身を除く): 4326028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 673, 868, 1085, 1346, 2170, 2692, 3365, 4340, 4711, 6730, 9422, 13460, 18844, 20863, 23555, 41726, 47110, 83452, 94220, 104315, 146041, 208630, 292082, 417260, 584164, 730205, 1460410, 2920820]

約数ペア:

[(1, 2920820), (2, 1460410), (4, 730205), (5, 584164), (7, 417260), (10, 292082), (14, 208630), (20, 146041), (28, 104315), (31, 94220), (35, 83452), (62, 47110), (70, 41726), (124, 23555), (140, 20863), (155, 18844), (217, 13460), (310, 9422), (434, 6730), (620, 4711), (673, 4340), (868, 3365), (1085, 2692), (1346, 2170)]