28227680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:400

約数の個数: 96

約数和(自身を含む): 73791648

約数和(自身を除く): 45563968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 41, 52, 65, 80, 82, 104, 130, 160, 164, 205, 208, 260, 328, 331, 410, 416, 520, 533, 656, 662, 820, 1040, 1066, 1312, 1324, 1640, 1655, 2080, 2132, 2648, 2665, 3280, 3310, 4264, 4303, 5296, 5330, 6560, 6620, 8528, 8606, 10592, 10660, 13240, 13571, 17056, 17212, 21320, 21515, 26480, 27142, 34424, 42640, 43030, 52960, 54284, 67855, 68848, 85280, 86060, 108568, 135710, 137696, 172120, 176423, 217136, 271420, 344240, 352846, 434272, 542840, 688480, 705692, 882115, 1085680, 1411384, 1764230, 2171360, 2822768, 3528460, 5645536, 7056920, 14113840, 28227680]

約数ペア:

[(1, 28227680), (2, 14113840), (4, 7056920), (5, 5645536), (8, 3528460), (10, 2822768), (13, 2171360), (16, 1764230), (20, 1411384), (26, 1085680), (32, 882115), (40, 705692), (41, 688480), (52, 542840), (65, 434272), (80, 352846), (82, 344240), (104, 271420), (130, 217136), (160, 176423), (164, 172120), (205, 137696), (208, 135710), (260, 108568), (328, 86060), (331, 85280), (410, 68848), (416, 67855), (520, 54284), (533, 52960), (656, 43030), (662, 42640), (820, 34424), (1040, 27142), (1066, 26480), (1312, 21515), (1324, 21320), (1640, 17212), (1655, 17056), (2080, 13571), (2132, 13240), (2648, 10660), (2665, 10592), (3280, 8606), (3310, 8528), (4264, 6620), (4303, 6560), (5296, 5330)]