491444680

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{5507}}^1$

素因数の和:5638

約数の個数: 64

約数和(自身を含む): 1165933440

約数和(自身を除く): 674488760

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 97, 115, 184, 194, 230, 388, 460, 485, 776, 920, 970, 1940, 2231, 3880, 4462, 5507, 8924, 11014, 11155, 17848, 22028, 22310, 27535, 44056, 44620, 55070, 89240, 110140, 126661, 220280, 253322, 506644, 534179, 633305, 1013288, 1068358, 1266610, 2136716, 2533220, 2670895, 4273432, 5066440, 5341790, 10683580, 12286117, 21367160, 24572234, 49144468, 61430585, 98288936, 122861170, 245722340, 491444680]

約数ペア:

[(1, 491444680), (2, 245722340), (4, 122861170), (5, 98288936), (8, 61430585), (10, 49144468), (20, 24572234), (23, 21367160), (40, 12286117), (46, 10683580), (92, 5341790), (97, 5066440), (115, 4273432), (184, 2670895), (194, 2533220), (230, 2136716), (388, 1266610), (460, 1068358), (485, 1013288), (776, 633305), (920, 534179), (970, 506644), (1940, 253322), (2231, 220280), (3880, 126661), (4462, 110140), (5507, 89240), (8924, 55070), (11014, 44620), (11155, 44056), (17848, 27535), (22028, 22310)]