64227980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{977}}^1$

素因数の和:1178

約数の個数: 48

約数和(自身を含む): 142944480

約数和(自身を除く): 78716500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 173, 190, 346, 380, 692, 865, 977, 1730, 1954, 3287, 3460, 3908, 4885, 6574, 9770, 13148, 16435, 18563, 19540, 32870, 37126, 65740, 74252, 92815, 169021, 185630, 338042, 371260, 676084, 845105, 1690210, 3211399, 3380420, 6422798, 12845596, 16056995, 32113990, 64227980]

約数ペア:

[(1, 64227980), (2, 32113990), (4, 16056995), (5, 12845596), (10, 6422798), (19, 3380420), (20, 3211399), (38, 1690210), (76, 845105), (95, 676084), (173, 371260), (190, 338042), (346, 185630), (380, 169021), (692, 92815), (865, 74252), (977, 65740), (1730, 37126), (1954, 32870), (3287, 19540), (3460, 18563), (3908, 16435), (4885, 13148), (6574, 9770)]