205738120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:299

約数の個数: 128

約数和(自身を含む): 547430400

約数和(自身を除く): 341692280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 79, 131, 140, 142, 158, 262, 280, 284, 316, 355, 395, 497, 524, 553, 568, 632, 655, 710, 790, 917, 994, 1048, 1106, 1310, 1420, 1580, 1834, 1988, 2212, 2485, 2620, 2765, 2840, 3160, 3668, 3976, 4424, 4585, 4970, 5240, 5530, 5609, 7336, 9170, 9301, 9940, 10349, 11060, 11218, 18340, 18602, 19880, 20698, 22120, 22436, 28045, 36680, 37204, 39263, 41396, 44872, 46505, 51745, 56090, 65107, 72443, 74408, 78526, 82792, 93010, 103490, 112180, 130214, 144886, 157052, 186020, 196315, 206980, 224360, 260428, 289772, 314104, 325535, 362215, 372040, 392630, 413960, 520856, 579544, 651070, 724430, 734779, 785260, 1302140, 1448860, 1469558, 1570520, 2604280, 2897720, 2939116, 3673895, 5143453, 5878232, 7347790, 10286906, 14695580, 20573812, 25717265, 29391160, 41147624, 51434530, 102869060, 205738120]

約数ペア:

[(1, 205738120), (2, 102869060), (4, 51434530), (5, 41147624), (7, 29391160), (8, 25717265), (10, 20573812), (14, 14695580), (20, 10286906), (28, 7347790), (35, 5878232), (40, 5143453), (56, 3673895), (70, 2939116), (71, 2897720), (79, 2604280), (131, 1570520), (140, 1469558), (142, 1448860), (158, 1302140), (262, 785260), (280, 734779), (284, 724430), (316, 651070), (355, 579544), (395, 520856), (497, 413960), (524, 392630), (553, 372040), (568, 362215), (632, 325535), (655, 314104), (710, 289772), (790, 260428), (917, 224360), (994, 206980), (1048, 196315), (1106, 186020), (1310, 157052), (1420, 144886), (1580, 130214), (1834, 112180), (1988, 103490), (2212, 93010), (2485, 82792), (2620, 78526), (2765, 74408), (2840, 72443), (3160, 65107), (3668, 56090), (3976, 51745), (4424, 46505), (4585, 44872), (4970, 41396), (5240, 39263), (5530, 37204), (5609, 36680), (7336, 28045), (9170, 22436), (9301, 22120), (9940, 20698), (10349, 19880), (11060, 18602), (11218, 18340)]