201731915

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:272

約数の個数: 64

約数和(自身を含む): 313528320

約数和(自身を除く): 111796405

約数列:

[1, 5, 7, 11, 35, 55, 59, 77, 83, 107, 295, 385, 413, 415, 535, 581, 649, 749, 913, 1177, 2065, 2905, 3245, 3745, 4543, 4565, 4897, 5885, 6313, 6391, 8239, 8881, 22715, 24485, 31565, 31955, 34279, 41195, 44191, 44405, 53867, 62167, 69443, 97691, 171395, 220955, 269335, 310835, 347215, 377069, 486101, 488455, 523979, 683837, 1885345, 2430505, 2619895, 3419185, 3667853, 5763769, 18339265, 28818845, 40346383, 201731915]

約数ペア:

[(1, 201731915), (5, 40346383), (7, 28818845), (11, 18339265), (35, 5763769), (55, 3667853), (59, 3419185), (77, 2619895), (83, 2430505), (107, 1885345), (295, 683837), (385, 523979), (413, 488455), (415, 486101), (535, 377069), (581, 347215), (649, 310835), (749, 269335), (913, 220955), (1177, 171395), (2065, 97691), (2905, 69443), (3245, 62167), (3745, 53867), (4543, 44405), (4565, 44191), (4897, 41195), (5885, 34279), (6313, 31955), (6391, 31565), (8239, 24485), (8881, 22715)]