820369080

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{39979}}^1$

素因数の和:40018

約数の個数: 128

約数和(自身を含む): 2878560000

約数和(自身を除く): 2058190920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 10260, 20520, 39979, 79958, 119937, 159916, 199895, 239874, 319832, 359811, 399790, 479748, 599685, 719622, 759601, 799580, 959496, 1079433, 1199370, 1439244, 1519202, 1599160, 1799055, 2158866, 2278803, 2398740, 2878488, 3038404, 3598110, 3798005, 4317732, 4557606, 4797480, 5397165, 6076808, 6836409, 7196220, 7596010, 8635464, 9115212, 10794330, 11394015, 13672818, 14392440, 15192020, 18230424, 20509227, 21588660, 22788030, 27345636, 30384040, 34182045, 41018454, 43177320, 45576060, 54691272, 68364090, 82036908, 91152120, 102546135, 136728180, 164073816, 205092270, 273456360, 410184540, 820369080]

約数ペア:

[(1, 820369080), (2, 410184540), (3, 273456360), (4, 205092270), (5, 164073816), (6, 136728180), (8, 102546135), (9, 91152120), (10, 82036908), (12, 68364090), (15, 54691272), (18, 45576060), (19, 43177320), (20, 41018454), (24, 34182045), (27, 30384040), (30, 27345636), (36, 22788030), (38, 21588660), (40, 20509227), (45, 18230424), (54, 15192020), (57, 14392440), (60, 13672818), (72, 11394015), (76, 10794330), (90, 9115212), (95, 8635464), (108, 7596010), (114, 7196220), (120, 6836409), (135, 6076808), (152, 5397165), (171, 4797480), (180, 4557606), (190, 4317732), (216, 3798005), (228, 3598110), (270, 3038404), (285, 2878488), (342, 2398740), (360, 2278803), (380, 2158866), (456, 1799055), (513, 1599160), (540, 1519202), (570, 1439244), (684, 1199370), (760, 1079433), (855, 959496), (1026, 799580), (1080, 759601), (1140, 719622), (1368, 599685), (1710, 479748), (2052, 399790), (2280, 359811), (2565, 319832), (3420, 239874), (4104, 199895), (5130, 159916), (6840, 119937), (10260, 79958), (20520, 39979)]