312551440

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1\times {\mathrm{457}}^1$

素因数の和:656

約数の個数: 80

約数和(自身を含む): 744202368

約数和(自身を除く): 431650928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 103, 166, 206, 332, 412, 415, 457, 515, 664, 824, 830, 914, 1030, 1328, 1648, 1660, 1828, 2060, 2285, 3320, 3656, 4120, 4570, 6640, 7312, 8240, 8549, 9140, 17098, 18280, 34196, 36560, 37931, 42745, 47071, 68392, 75862, 85490, 94142, 136784, 151724, 170980, 188284, 189655, 235355, 303448, 341960, 376568, 379310, 470710, 606896, 683920, 753136, 758620, 941420, 1517240, 1882840, 3034480, 3765680, 3906893, 7813786, 15627572, 19534465, 31255144, 39068930, 62510288, 78137860, 156275720, 312551440]

約数ペア:

[(1, 312551440), (2, 156275720), (4, 78137860), (5, 62510288), (8, 39068930), (10, 31255144), (16, 19534465), (20, 15627572), (40, 7813786), (80, 3906893), (83, 3765680), (103, 3034480), (166, 1882840), (206, 1517240), (332, 941420), (412, 758620), (415, 753136), (457, 683920), (515, 606896), (664, 470710), (824, 379310), (830, 376568), (914, 341960), (1030, 303448), (1328, 235355), (1648, 189655), (1660, 188284), (1828, 170980), (2060, 151724), (2285, 136784), (3320, 94142), (3656, 85490), (4120, 75862), (4570, 68392), (6640, 47071), (7312, 42745), (8240, 37931), (8549, 36560), (9140, 34196), (17098, 18280)]