20111255980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{983}}^1\times {\mathrm{19301}}^1$

素因数の和:20346

約数の個数: 48

約数和(自身を含む): 43076505024

約数和(自身を除く): 22965249044

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 983, 1060, 1966, 3932, 4915, 9830, 19301, 19660, 38602, 52099, 77204, 96505, 104198, 193010, 208396, 260495, 386020, 520990, 1022953, 1041980, 2045906, 4091812, 5114765, 10229530, 18972883, 20459060, 37945766, 75891532, 94864415, 189728830, 379457660, 1005562799, 2011125598, 4022251196, 5027813995, 10055627990, 20111255980]

約数ペア:

[(1, 20111255980), (2, 10055627990), (4, 5027813995), (5, 4022251196), (10, 2011125598), (20, 1005562799), (53, 379457660), (106, 189728830), (212, 94864415), (265, 75891532), (530, 37945766), (983, 20459060), (1060, 18972883), (1966, 10229530), (3932, 5114765), (4915, 4091812), (9830, 2045906), (19301, 1041980), (19660, 1022953), (38602, 520990), (52099, 386020), (77204, 260495), (96505, 208396), (104198, 193010)]