408720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:160

約数の個数: 80

約数和(自身を含む): 1374912

約数和(自身を除く): 966192

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, 131, 156, 195, 208, 240, 260, 262, 312, 390, 393, 520, 524, 624, 655, 780, 786, 1040, 1048, 1310, 1560, 1572, 1703, 1965, 2096, 2620, 3120, 3144, 3406, 3930, 5109, 5240, 6288, 6812, 7860, 8515, 10218, 10480, 13624, 15720, 17030, 20436, 25545, 27248, 31440, 34060, 40872, 51090, 68120, 81744, 102180, 136240, 204360, 408720]

約数ペア:

[(1, 408720), (2, 204360), (3, 136240), (4, 102180), (5, 81744), (6, 68120), (8, 51090), (10, 40872), (12, 34060), (13, 31440), (15, 27248), (16, 25545), (20, 20436), (24, 17030), (26, 15720), (30, 13624), (39, 10480), (40, 10218), (48, 8515), (52, 7860), (60, 6812), (65, 6288), (78, 5240), (80, 5109), (104, 3930), (120, 3406), (130, 3144), (131, 3120), (156, 2620), (195, 2096), (208, 1965), (240, 1703), (260, 1572), (262, 1560), (312, 1310), (390, 1048), (393, 1040), (520, 786), (524, 780), (624, 655)]