1379751720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{881}}^1$

素因数の和:1347

約数の個数: 128

約数和(自身を含む): 4287790080

約数和(自身を除く): 2908038360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 421, 465, 620, 744, 842, 881, 930, 1240, 1263, 1684, 1762, 1860, 2105, 2526, 2643, 3368, 3524, 3720, 4210, 4405, 5052, 5286, 6315, 7048, 8420, 8810, 10104, 10572, 12630, 13051, 13215, 16840, 17620, 21144, 25260, 26102, 26430, 27311, 35240, 39153, 50520, 52204, 52860, 54622, 65255, 78306, 81933, 104408, 105720, 109244, 130510, 136555, 156612, 163866, 195765, 218488, 261020, 273110, 313224, 327732, 370901, 391530, 409665, 522040, 546220, 655464, 741802, 783060, 819330, 1092440, 1112703, 1483604, 1566120, 1638660, 1854505, 2225406, 2967208, 3277320, 3709010, 4450812, 5563515, 7418020, 8901624, 11127030, 11497931, 14836040, 22254060, 22995862, 34493793, 44508120, 45991724, 57489655, 68987586, 91983448, 114979310, 137975172, 172468965, 229958620, 275950344, 344937930, 459917240, 689875860, 1379751720]

約数ペア:

[(1, 1379751720), (2, 689875860), (3, 459917240), (4, 344937930), (5, 275950344), (6, 229958620), (8, 172468965), (10, 137975172), (12, 114979310), (15, 91983448), (20, 68987586), (24, 57489655), (30, 45991724), (31, 44508120), (40, 34493793), (60, 22995862), (62, 22254060), (93, 14836040), (120, 11497931), (124, 11127030), (155, 8901624), (186, 7418020), (248, 5563515), (310, 4450812), (372, 3709010), (421, 3277320), (465, 2967208), (620, 2225406), (744, 1854505), (842, 1638660), (881, 1566120), (930, 1483604), (1240, 1112703), (1263, 1092440), (1684, 819330), (1762, 783060), (1860, 741802), (2105, 655464), (2526, 546220), (2643, 522040), (3368, 409665), (3524, 391530), (3720, 370901), (4210, 327732), (4405, 313224), (5052, 273110), (5286, 261020), (6315, 218488), (7048, 195765), (8420, 163866), (8810, 156612), (10104, 136555), (10572, 130510), (12630, 109244), (13051, 105720), (13215, 104408), (16840, 81933), (17620, 78306), (21144, 65255), (25260, 54622), (26102, 52860), (26430, 52204), (27311, 50520), (35240, 39153)]