18319420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 47416320

約数和(自身を除く): 29096900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 71, 76, 95, 97, 133, 140, 142, 190, 194, 266, 284, 355, 380, 388, 485, 497, 532, 665, 679, 710, 970, 994, 1330, 1349, 1358, 1420, 1843, 1940, 1988, 2485, 2660, 2698, 2716, 3395, 3686, 4970, 5396, 6745, 6790, 6887, 7372, 9215, 9443, 9940, 12901, 13490, 13580, 13774, 18430, 18886, 25802, 26980, 27548, 34435, 36860, 37772, 47215, 48209, 51604, 64505, 68870, 94430, 96418, 129010, 130853, 137740, 188860, 192836, 241045, 258020, 261706, 482090, 523412, 654265, 915971, 964180, 1308530, 1831942, 2617060, 3663884, 4579855, 9159710, 18319420]

約数ペア:

[(1, 18319420), (2, 9159710), (4, 4579855), (5, 3663884), (7, 2617060), (10, 1831942), (14, 1308530), (19, 964180), (20, 915971), (28, 654265), (35, 523412), (38, 482090), (70, 261706), (71, 258020), (76, 241045), (95, 192836), (97, 188860), (133, 137740), (140, 130853), (142, 129010), (190, 96418), (194, 94430), (266, 68870), (284, 64505), (355, 51604), (380, 48209), (388, 47215), (485, 37772), (497, 36860), (532, 34435), (665, 27548), (679, 26980), (710, 25802), (970, 18886), (994, 18430), (1330, 13774), (1349, 13580), (1358, 13490), (1420, 12901), (1843, 9940), (1940, 9443), (1988, 9215), (2485, 7372), (2660, 6887), (2698, 6790), (2716, 6745), (3395, 5396), (3686, 4970)]