28349720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{983}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 73681920

約数和(自身を除く): 45332200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 103, 140, 206, 280, 412, 515, 721, 824, 983, 1030, 1442, 1966, 2060, 2884, 3605, 3932, 4120, 4915, 5768, 6881, 7210, 7864, 9830, 13762, 14420, 19660, 27524, 28840, 34405, 39320, 55048, 68810, 101249, 137620, 202498, 275240, 404996, 506245, 708743, 809992, 1012490, 1417486, 2024980, 2834972, 3543715, 4049960, 5669944, 7087430, 14174860, 28349720]

約数ペア:

[(1, 28349720), (2, 14174860), (4, 7087430), (5, 5669944), (7, 4049960), (8, 3543715), (10, 2834972), (14, 2024980), (20, 1417486), (28, 1012490), (35, 809992), (40, 708743), (56, 506245), (70, 404996), (103, 275240), (140, 202498), (206, 137620), (280, 101249), (412, 68810), (515, 55048), (721, 39320), (824, 34405), (983, 28840), (1030, 27524), (1442, 19660), (1966, 14420), (2060, 13762), (2884, 9830), (3605, 7864), (3932, 7210), (4120, 6881), (4915, 5768)]