66777740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{811}}^1$

素因数の和:1022

約数の個数: 48

約数和(自身を含む): 147329280

約数和(自身を除く): 80551540

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 179, 230, 358, 460, 716, 811, 895, 1622, 1790, 3244, 3580, 4055, 4117, 8110, 8234, 16220, 16468, 18653, 20585, 37306, 41170, 74612, 82340, 93265, 145169, 186530, 290338, 373060, 580676, 725845, 1451690, 2903380, 3338887, 6677774, 13355548, 16694435, 33388870, 66777740]

約数ペア:

[(1, 66777740), (2, 33388870), (4, 16694435), (5, 13355548), (10, 6677774), (20, 3338887), (23, 2903380), (46, 1451690), (92, 725845), (115, 580676), (179, 373060), (230, 290338), (358, 186530), (460, 145169), (716, 93265), (811, 82340), (895, 74612), (1622, 41170), (1790, 37306), (3244, 20585), (3580, 18653), (4055, 16468), (4117, 16220), (8110, 8234)]