19285720

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{151}}^1$

素因数の和:296

約数の個数: 64

約数和(自身を含む): 45527040

約数和(自身を除く): 26241320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 151, 155, 206, 248, 302, 310, 412, 515, 604, 620, 755, 824, 1030, 1208, 1240, 1510, 2060, 3020, 3193, 4120, 4681, 6040, 6386, 9362, 12772, 15553, 15965, 18724, 23405, 25544, 31106, 31930, 37448, 46810, 62212, 63860, 77765, 93620, 124424, 127720, 155530, 187240, 311060, 482143, 622120, 964286, 1928572, 2410715, 3857144, 4821430, 9642860, 19285720]

約数ペア:

[(1, 19285720), (2, 9642860), (4, 4821430), (5, 3857144), (8, 2410715), (10, 1928572), (20, 964286), (31, 622120), (40, 482143), (62, 311060), (103, 187240), (124, 155530), (151, 127720), (155, 124424), (206, 93620), (248, 77765), (302, 63860), (310, 62212), (412, 46810), (515, 37448), (604, 31930), (620, 31106), (755, 25544), (824, 23405), (1030, 18724), (1208, 15965), (1240, 15553), (1510, 12772), (2060, 9362), (3020, 6386), (3193, 6040), (4120, 4681)]