20020730

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 21036550

約数列:

[1, 2, 5, 10, 17, 29, 31, 34, 58, 62, 85, 131, 145, 155, 170, 262, 290, 310, 493, 527, 655, 899, 986, 1054, 1310, 1798, 2227, 2465, 2635, 3799, 4061, 4454, 4495, 4930, 5270, 7598, 8122, 8990, 11135, 15283, 18995, 20305, 22270, 30566, 37990, 40610, 64583, 69037, 76415, 117769, 129166, 138074, 152830, 235538, 322915, 345185, 588845, 645830, 690370, 1177690, 2002073, 4004146, 10010365, 20020730]

約数ペア:

[(1, 20020730), (2, 10010365), (5, 4004146), (10, 2002073), (17, 1177690), (29, 690370), (31, 645830), (34, 588845), (58, 345185), (62, 322915), (85, 235538), (131, 152830), (145, 138074), (155, 129166), (170, 117769), (262, 76415), (290, 69037), (310, 64583), (493, 40610), (527, 37990), (655, 30566), (899, 22270), (986, 20305), (1054, 18995), (1310, 15283), (1798, 11135), (2227, 8990), (2465, 8122), (2635, 7598), (3799, 5270), (4061, 4930), (4454, 4495)]