20443620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:337

約数の個数: 96

約数和(自身を含む): 61286400

約数和(自身を除く): 40842780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 79, 95, 114, 158, 190, 227, 228, 237, 285, 316, 380, 395, 454, 474, 570, 681, 790, 908, 948, 1135, 1140, 1185, 1362, 1501, 1580, 2270, 2370, 2724, 3002, 3405, 4313, 4503, 4540, 4740, 6004, 6810, 7505, 8626, 9006, 12939, 13620, 15010, 17252, 17933, 18012, 21565, 22515, 25878, 30020, 35866, 43130, 45030, 51756, 53799, 64695, 71732, 86260, 89665, 90060, 107598, 129390, 179330, 215196, 258780, 268995, 340727, 358660, 537990, 681454, 1022181, 1075980, 1362908, 1703635, 2044362, 3407270, 4088724, 5110905, 6814540, 10221810, 20443620]

約数ペア:

[(1, 20443620), (2, 10221810), (3, 6814540), (4, 5110905), (5, 4088724), (6, 3407270), (10, 2044362), (12, 1703635), (15, 1362908), (19, 1075980), (20, 1022181), (30, 681454), (38, 537990), (57, 358660), (60, 340727), (76, 268995), (79, 258780), (95, 215196), (114, 179330), (158, 129390), (190, 107598), (227, 90060), (228, 89665), (237, 86260), (285, 71732), (316, 64695), (380, 53799), (395, 51756), (454, 45030), (474, 43130), (570, 35866), (681, 30020), (790, 25878), (908, 22515), (948, 21565), (1135, 18012), (1140, 17933), (1185, 17252), (1362, 15010), (1501, 13620), (1580, 12939), (2270, 9006), (2370, 8626), (2724, 7505), (3002, 6810), (3405, 6004), (4313, 4740), (4503, 4540)]