840490610

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{443}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 1618092288

約数和(自身を除く): 777601678

約数列:

[1, 2, 5, 10, 23, 46, 73, 113, 115, 146, 226, 230, 365, 443, 565, 730, 886, 1130, 1679, 2215, 2599, 3358, 4430, 5198, 8249, 8395, 10189, 12995, 16498, 16790, 20378, 25990, 32339, 41245, 50059, 50945, 64678, 82490, 100118, 101890, 161695, 189727, 250295, 323390, 379454, 500590, 743797, 948635, 1151357, 1487594, 1897270, 2302714, 3654307, 3718985, 5756785, 7308614, 7437970, 11513570, 18271535, 36543070, 84049061, 168098122, 420245305, 840490610]

約数ペア:

[(1, 840490610), (2, 420245305), (5, 168098122), (10, 84049061), (23, 36543070), (46, 18271535), (73, 11513570), (113, 7437970), (115, 7308614), (146, 5756785), (226, 3718985), (230, 3654307), (365, 2302714), (443, 1897270), (565, 1487594), (730, 1151357), (886, 948635), (1130, 743797), (1679, 500590), (2215, 379454), (2599, 323390), (3358, 250295), (4430, 189727), (5198, 161695), (8249, 101890), (8395, 100118), (10189, 82490), (12995, 64678), (16498, 50945), (16790, 50059), (20378, 41245), (25990, 32339)]