397469740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{383}}^1\times {\mathrm{2731}}^1$

素因数の和:3142

約数の個数: 48

約数和(自身を含む): 881233920

約数和(自身を除く): 483764180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 383, 766, 1532, 1915, 2731, 3830, 5462, 7277, 7660, 10924, 13655, 14554, 27310, 29108, 36385, 51889, 54620, 72770, 103778, 145540, 207556, 259445, 518890, 1037780, 1045973, 2091946, 4183892, 5229865, 10459730, 19873487, 20919460, 39746974, 79493948, 99367435, 198734870, 397469740]

約数ペア:

[(1, 397469740), (2, 198734870), (4, 99367435), (5, 79493948), (10, 39746974), (19, 20919460), (20, 19873487), (38, 10459730), (76, 5229865), (95, 4183892), (190, 2091946), (380, 1045973), (383, 1037780), (766, 518890), (1532, 259445), (1915, 207556), (2731, 145540), (3830, 103778), (5462, 72770), (7277, 54620), (7660, 51889), (10924, 36385), (13655, 29108), (14554, 27310)]