31377320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{727}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 77051520

約数和(自身を除く): 45674200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 83, 104, 130, 166, 260, 332, 415, 520, 664, 727, 830, 1079, 1454, 1660, 2158, 2908, 3320, 3635, 4316, 5395, 5816, 7270, 8632, 9451, 10790, 14540, 18902, 21580, 29080, 37804, 43160, 47255, 60341, 75608, 94510, 120682, 189020, 241364, 301705, 378040, 482728, 603410, 784433, 1206820, 1568866, 2413640, 3137732, 3922165, 6275464, 7844330, 15688660, 31377320]

約数ペア:

[(1, 31377320), (2, 15688660), (4, 7844330), (5, 6275464), (8, 3922165), (10, 3137732), (13, 2413640), (20, 1568866), (26, 1206820), (40, 784433), (52, 603410), (65, 482728), (83, 378040), (104, 301705), (130, 241364), (166, 189020), (260, 120682), (332, 94510), (415, 75608), (520, 60341), (664, 47255), (727, 43160), (830, 37804), (1079, 29080), (1454, 21580), (1660, 18902), (2158, 14540), (2908, 10790), (3320, 9451), (3635, 8632), (4316, 7270), (5395, 5816)]