28304240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{113}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 69209856

約数和(自身を除く): 40905616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 101, 113, 124, 155, 202, 226, 248, 310, 404, 452, 496, 505, 565, 620, 808, 904, 1010, 1130, 1240, 1616, 1808, 2020, 2260, 2480, 3131, 3503, 4040, 4520, 6262, 7006, 8080, 9040, 11413, 12524, 14012, 15655, 17515, 22826, 25048, 28024, 31310, 35030, 45652, 50096, 56048, 57065, 62620, 70060, 91304, 114130, 125240, 140120, 182608, 228260, 250480, 280240, 353803, 456520, 707606, 913040, 1415212, 1769015, 2830424, 3538030, 5660848, 7076060, 14152120, 28304240]

約数ペア:

[(1, 28304240), (2, 14152120), (4, 7076060), (5, 5660848), (8, 3538030), (10, 2830424), (16, 1769015), (20, 1415212), (31, 913040), (40, 707606), (62, 456520), (80, 353803), (101, 280240), (113, 250480), (124, 228260), (155, 182608), (202, 140120), (226, 125240), (248, 114130), (310, 91304), (404, 70060), (452, 62620), (496, 57065), (505, 56048), (565, 50096), (620, 45652), (808, 35030), (904, 31310), (1010, 28024), (1130, 25048), (1240, 22826), (1616, 17515), (1808, 15655), (2020, 14012), (2260, 12524), (2480, 11413), (3131, 9040), (3503, 8080), (4040, 7006), (4520, 6262)]