19821320

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 47848320

約数和(自身を除く): 28027000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 103, 136, 170, 206, 283, 340, 412, 515, 566, 680, 824, 1030, 1132, 1415, 1751, 2060, 2264, 2830, 3502, 4120, 4811, 5660, 7004, 8755, 9622, 11320, 14008, 17510, 19244, 24055, 29149, 35020, 38488, 48110, 58298, 70040, 96220, 116596, 145745, 192440, 233192, 291490, 495533, 582980, 991066, 1165960, 1982132, 2477665, 3964264, 4955330, 9910660, 19821320]

約数ペア:

[(1, 19821320), (2, 9910660), (4, 4955330), (5, 3964264), (8, 2477665), (10, 1982132), (17, 1165960), (20, 991066), (34, 582980), (40, 495533), (68, 291490), (85, 233192), (103, 192440), (136, 145745), (170, 116596), (206, 96220), (283, 70040), (340, 58298), (412, 48110), (515, 38488), (566, 35020), (680, 29149), (824, 24055), (1030, 19244), (1132, 17510), (1415, 14008), (1751, 11320), (2060, 9622), (2264, 8755), (2830, 7004), (3502, 5660), (4120, 4811)]