39993980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{1523}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 91403424

約数和(自身を除く): 51409444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1313, 1523, 2020, 2626, 3046, 5252, 6092, 6565, 7615, 13130, 15230, 19799, 26260, 30460, 39598, 79196, 98995, 153823, 197990, 307646, 395980, 615292, 769115, 1538230, 1999699, 3076460, 3999398, 7998796, 9998495, 19996990, 39993980]

約数ペア:

[(1, 39993980), (2, 19996990), (4, 9998495), (5, 7998796), (10, 3999398), (13, 3076460), (20, 1999699), (26, 1538230), (52, 769115), (65, 615292), (101, 395980), (130, 307646), (202, 197990), (260, 153823), (404, 98995), (505, 79196), (1010, 39598), (1313, 30460), (1523, 26260), (2020, 19799), (2626, 15230), (3046, 13130), (5252, 7615), (6092, 6565)]