1721340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:219

約数の個数: 72

約数和(自身を含む): 5333328

約数和(自身を除く): 3611988

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 131, 146, 180, 219, 262, 292, 365, 393, 438, 524, 655, 657, 730, 786, 876, 1095, 1179, 1310, 1314, 1460, 1572, 1965, 2190, 2358, 2620, 2628, 3285, 3930, 4380, 4716, 5895, 6570, 7860, 9563, 11790, 13140, 19126, 23580, 28689, 38252, 47815, 57378, 86067, 95630, 114756, 143445, 172134, 191260, 286890, 344268, 430335, 573780, 860670, 1721340]

約数ペア:

[(1, 1721340), (2, 860670), (3, 573780), (4, 430335), (5, 344268), (6, 286890), (9, 191260), (10, 172134), (12, 143445), (15, 114756), (18, 95630), (20, 86067), (30, 57378), (36, 47815), (45, 38252), (60, 28689), (73, 23580), (90, 19126), (131, 13140), (146, 11790), (180, 9563), (219, 7860), (262, 6570), (292, 5895), (365, 4716), (393, 4380), (438, 3930), (524, 3285), (655, 2628), (657, 2620), (730, 2358), (786, 2190), (876, 1965), (1095, 1572), (1179, 1460), (1310, 1314)]