30891120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9901}}^1$

素因数の和:9930

約数の個数: 80

約数和(自身を含む): 103139232

約数和(自身を除く): 72248112

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 9901, 19802, 29703, 39604, 49505, 59406, 79208, 99010, 118812, 128713, 148515, 158416, 198020, 237624, 257426, 297030, 386139, 396040, 475248, 514852, 594060, 643565, 772278, 792080, 1029704, 1188120, 1287130, 1544556, 1930695, 2059408, 2376240, 2574260, 3089112, 3861390, 5148520, 6178224, 7722780, 10297040, 15445560, 30891120]

約数ペア:

[(1, 30891120), (2, 15445560), (3, 10297040), (4, 7722780), (5, 6178224), (6, 5148520), (8, 3861390), (10, 3089112), (12, 2574260), (13, 2376240), (15, 2059408), (16, 1930695), (20, 1544556), (24, 1287130), (26, 1188120), (30, 1029704), (39, 792080), (40, 772278), (48, 643565), (52, 594060), (60, 514852), (65, 475248), (78, 396040), (80, 386139), (104, 297030), (120, 257426), (130, 237624), (156, 198020), (195, 158416), (208, 148515), (240, 128713), (260, 118812), (312, 99010), (390, 79208), (520, 59406), (624, 49505), (780, 39604), (1040, 29703), (1560, 19802), (3120, 9901)]