20295704

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 64

約数和(自身を含む): 45390240

約数和(自身を除く): 25094536

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 113, 143, 157, 226, 286, 314, 452, 572, 628, 904, 1144, 1243, 1256, 1469, 1727, 2041, 2486, 2938, 3454, 4082, 4972, 5876, 6908, 8164, 9944, 11752, 13816, 16159, 16328, 17741, 22451, 32318, 35482, 44902, 64636, 70964, 89804, 129272, 141928, 179608, 195151, 230633, 390302, 461266, 780604, 922532, 1561208, 1845064, 2536963, 5073926, 10147852, 20295704]

約数ペア:

[(1, 20295704), (2, 10147852), (4, 5073926), (8, 2536963), (11, 1845064), (13, 1561208), (22, 922532), (26, 780604), (44, 461266), (52, 390302), (88, 230633), (104, 195151), (113, 179608), (143, 141928), (157, 129272), (226, 89804), (286, 70964), (314, 64636), (452, 44902), (572, 35482), (628, 32318), (904, 22451), (1144, 17741), (1243, 16328), (1256, 16159), (1469, 13816), (1727, 11752), (2041, 9944), (2486, 8164), (2938, 6908), (3454, 5876), (4082, 4972)]