131423860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{1931}}^1$

素因数の和:2064

約数の個数: 48

約数和(自身を含む): 286276032

約数和(自身を除く): 154852172

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 83, 164, 166, 205, 332, 410, 415, 820, 830, 1660, 1931, 3403, 3862, 6806, 7724, 9655, 13612, 17015, 19310, 34030, 38620, 68060, 79171, 158342, 160273, 316684, 320546, 395855, 641092, 791710, 801365, 1583420, 1602730, 3205460, 6571193, 13142386, 26284772, 32855965, 65711930, 131423860]

約数ペア:

[(1, 131423860), (2, 65711930), (4, 32855965), (5, 26284772), (10, 13142386), (20, 6571193), (41, 3205460), (82, 1602730), (83, 1583420), (164, 801365), (166, 791710), (205, 641092), (332, 395855), (410, 320546), (415, 316684), (820, 160273), (830, 158342), (1660, 79171), (1931, 68060), (3403, 38620), (3862, 34030), (6806, 19310), (7724, 17015), (9655, 13612)]