1445842020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{491783}}^1$

素因数の和:491809

約数の個数: 72

約数和(自身を含む): 4709323584

約数和(自身を除く): 3263481564

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 491783, 983566, 1475349, 1967132, 2458915, 2950698, 3442481, 4917830, 5901396, 6884962, 7376745, 9835660, 10327443, 13769924, 14753490, 17212405, 20654886, 24097367, 29506980, 34424810, 41309772, 48194734, 51637215, 68849620, 72292101, 96389468, 103274430, 120486835, 144584202, 206548860, 240973670, 289168404, 361460505, 481947340, 722921010, 1445842020]

約数ペア:

[(1, 1445842020), (2, 722921010), (3, 481947340), (4, 361460505), (5, 289168404), (6, 240973670), (7, 206548860), (10, 144584202), (12, 120486835), (14, 103274430), (15, 96389468), (20, 72292101), (21, 68849620), (28, 51637215), (30, 48194734), (35, 41309772), (42, 34424810), (49, 29506980), (60, 24097367), (70, 20654886), (84, 17212405), (98, 14753490), (105, 13769924), (140, 10327443), (147, 9835660), (196, 7376745), (210, 6884962), (245, 5901396), (294, 4917830), (420, 3442481), (490, 2950698), (588, 2458915), (735, 1967132), (980, 1475349), (1470, 983566), (2940, 491783)]