27664760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 66420000

約数和(自身を除く): 38755240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 409, 445, 712, 760, 818, 890, 1636, 1691, 1780, 2045, 3272, 3382, 3560, 4090, 6764, 7771, 8180, 8455, 13528, 15542, 16360, 16910, 31084, 33820, 36401, 38855, 62168, 67640, 72802, 77710, 145604, 155420, 182005, 291208, 310840, 364010, 691619, 728020, 1383238, 1456040, 2766476, 3458095, 5532952, 6916190, 13832380, 27664760]

約数ペア:

[(1, 27664760), (2, 13832380), (4, 6916190), (5, 5532952), (8, 3458095), (10, 2766476), (19, 1456040), (20, 1383238), (38, 728020), (40, 691619), (76, 364010), (89, 310840), (95, 291208), (152, 182005), (178, 155420), (190, 145604), (356, 77710), (380, 72802), (409, 67640), (445, 62168), (712, 38855), (760, 36401), (818, 33820), (890, 31084), (1636, 16910), (1691, 16360), (1780, 15542), (2045, 13528), (3272, 8455), (3382, 8180), (3560, 7771), (4090, 6764)]