205754220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{2677}}^1$

素因数の和:2760

約数の個数: 144

約数和(自身を含む): 725245248

約数和(自身を除く): 519491028

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 305, 315, 366, 420, 427, 549, 610, 630, 732, 854, 915, 1098, 1220, 1260, 1281, 1708, 1830, 2135, 2196, 2562, 2677, 2745, 3660, 3843, 4270, 5124, 5354, 5490, 6405, 7686, 8031, 8540, 10708, 10980, 12810, 13385, 15372, 16062, 18739, 19215, 24093, 25620, 26770, 32124, 37478, 38430, 40155, 48186, 53540, 56217, 74956, 76860, 80310, 93695, 96372, 112434, 120465, 160620, 163297, 168651, 187390, 224868, 240930, 281085, 326594, 337302, 374780, 481860, 489891, 562170, 653188, 674604, 816485, 843255, 979782, 1124340, 1143079, 1469673, 1632970, 1686510, 1959564, 2286158, 2449455, 2939346, 3265940, 3373020, 3429237, 4572316, 4898910, 5715395, 5878692, 6858474, 7348365, 9797820, 10287711, 11430790, 13716948, 14696730, 17146185, 20575422, 22861580, 29393460, 34292370, 41150844, 51438555, 68584740, 102877110, 205754220]

約数ペア:

[(1, 205754220), (2, 102877110), (3, 68584740), (4, 51438555), (5, 41150844), (6, 34292370), (7, 29393460), (9, 22861580), (10, 20575422), (12, 17146185), (14, 14696730), (15, 13716948), (18, 11430790), (20, 10287711), (21, 9797820), (28, 7348365), (30, 6858474), (35, 5878692), (36, 5715395), (42, 4898910), (45, 4572316), (60, 3429237), (61, 3373020), (63, 3265940), (70, 2939346), (84, 2449455), (90, 2286158), (105, 1959564), (122, 1686510), (126, 1632970), (140, 1469673), (180, 1143079), (183, 1124340), (210, 979782), (244, 843255), (252, 816485), (305, 674604), (315, 653188), (366, 562170), (420, 489891), (427, 481860), (549, 374780), (610, 337302), (630, 326594), (732, 281085), (854, 240930), (915, 224868), (1098, 187390), (1220, 168651), (1260, 163297), (1281, 160620), (1708, 120465), (1830, 112434), (2135, 96372), (2196, 93695), (2562, 80310), (2677, 76860), (2745, 74956), (3660, 56217), (3843, 53540), (4270, 48186), (5124, 40155), (5354, 38430), (5490, 37478), (6405, 32124), (7686, 26770), (8031, 25620), (8540, 24093), (10708, 19215), (10980, 18739), (12810, 16062), (13385, 15372)]