30259960

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:368

約数の個数: 64

約数和(自身を含む): 70915680

約数和(自身を除く): 40655720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 73, 86, 146, 172, 215, 241, 292, 344, 365, 430, 482, 584, 730, 860, 964, 1205, 1460, 1720, 1928, 2410, 2920, 3139, 4820, 6278, 9640, 10363, 12556, 15695, 17593, 20726, 25112, 31390, 35186, 41452, 51815, 62780, 70372, 82904, 87965, 103630, 125560, 140744, 175930, 207260, 351860, 414520, 703720, 756499, 1512998, 3025996, 3782495, 6051992, 7564990, 15129980, 30259960]

約数ペア:

[(1, 30259960), (2, 15129980), (4, 7564990), (5, 6051992), (8, 3782495), (10, 3025996), (20, 1512998), (40, 756499), (43, 703720), (73, 414520), (86, 351860), (146, 207260), (172, 175930), (215, 140744), (241, 125560), (292, 103630), (344, 87965), (365, 82904), (430, 70372), (482, 62780), (584, 51815), (730, 41452), (860, 35186), (964, 31390), (1205, 25112), (1460, 20726), (1720, 17593), (1928, 15695), (2410, 12556), (2920, 10363), (3139, 9640), (4820, 6278)]