28207020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{227}}^1$

素因数の和:367

約数の個数: 96

約数和(自身を含む): 84268800

約数和(自身を除く): 56061780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 109, 114, 190, 218, 227, 228, 285, 327, 380, 436, 454, 545, 570, 654, 681, 908, 1090, 1135, 1140, 1308, 1362, 1635, 2071, 2180, 2270, 2724, 3270, 3405, 4142, 4313, 4540, 6213, 6540, 6810, 8284, 8626, 10355, 12426, 12939, 13620, 17252, 20710, 21565, 24743, 24852, 25878, 31065, 41420, 43130, 49486, 51756, 62130, 64695, 74229, 86260, 98972, 123715, 124260, 129390, 148458, 247430, 258780, 296916, 371145, 470117, 494860, 742290, 940234, 1410351, 1484580, 1880468, 2350585, 2820702, 4701170, 5641404, 7051755, 9402340, 14103510, 28207020]

約数ペア:

[(1, 28207020), (2, 14103510), (3, 9402340), (4, 7051755), (5, 5641404), (6, 4701170), (10, 2820702), (12, 2350585), (15, 1880468), (19, 1484580), (20, 1410351), (30, 940234), (38, 742290), (57, 494860), (60, 470117), (76, 371145), (95, 296916), (109, 258780), (114, 247430), (190, 148458), (218, 129390), (227, 124260), (228, 123715), (285, 98972), (327, 86260), (380, 74229), (436, 64695), (454, 62130), (545, 51756), (570, 49486), (654, 43130), (681, 41420), (908, 31065), (1090, 25878), (1135, 24852), (1140, 24743), (1308, 21565), (1362, 20710), (1635, 17252), (2071, 13620), (2180, 12939), (2270, 12426), (2724, 10355), (3270, 8626), (3405, 8284), (4142, 6810), (4313, 6540), (4540, 6213)]