13801580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{487}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 31563840

約数和(自身を除く): 17762260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 487, 545, 974, 1090, 1417, 1948, 2180, 2435, 2834, 4870, 5668, 6331, 7085, 9740, 12662, 14170, 25324, 28340, 31655, 53083, 63310, 106166, 126620, 212332, 265415, 530830, 690079, 1061660, 1380158, 2760316, 3450395, 6900790, 13801580]

約数ペア:

[(1, 13801580), (2, 6900790), (4, 3450395), (5, 2760316), (10, 1380158), (13, 1061660), (20, 690079), (26, 530830), (52, 265415), (65, 212332), (109, 126620), (130, 106166), (218, 63310), (260, 53083), (436, 31655), (487, 28340), (545, 25324), (974, 14170), (1090, 12662), (1417, 9740), (1948, 7085), (2180, 6331), (2435, 5668), (2834, 4870)]