205636280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{1229}}^1$

素因数の和:1376

約数の個数: 64

約数和(自身を含む): 478224000

約数和(自身を除く): 272587720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 89, 94, 178, 188, 235, 356, 376, 445, 470, 712, 890, 940, 1229, 1780, 1880, 2458, 3560, 4183, 4916, 6145, 8366, 9832, 12290, 16732, 20915, 24580, 33464, 41830, 49160, 57763, 83660, 109381, 115526, 167320, 218762, 231052, 288815, 437524, 462104, 546905, 577630, 875048, 1093810, 1155260, 2187620, 2310520, 4375240, 5140907, 10281814, 20563628, 25704535, 41127256, 51409070, 102818140, 205636280]

約数ペア:

[(1, 205636280), (2, 102818140), (4, 51409070), (5, 41127256), (8, 25704535), (10, 20563628), (20, 10281814), (40, 5140907), (47, 4375240), (89, 2310520), (94, 2187620), (178, 1155260), (188, 1093810), (235, 875048), (356, 577630), (376, 546905), (445, 462104), (470, 437524), (712, 288815), (890, 231052), (940, 218762), (1229, 167320), (1780, 115526), (1880, 109381), (2458, 83660), (3560, 57763), (4183, 49160), (4916, 41830), (6145, 33464), (8366, 24580), (9832, 20915), (12290, 16732)]