128388520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{6673}}^1$

素因数の和:6734

約数の個数: 64

約数和(自身を含む): 319551120

約数和(自身を除く): 191162600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 52, 65, 74, 104, 130, 148, 185, 260, 296, 370, 481, 520, 740, 962, 1480, 1924, 2405, 3848, 4810, 6673, 9620, 13346, 19240, 26692, 33365, 53384, 66730, 86749, 133460, 173498, 246901, 266920, 346996, 433745, 493802, 693992, 867490, 987604, 1234505, 1734980, 1975208, 2469010, 3209713, 3469960, 4938020, 6419426, 9876040, 12838852, 16048565, 25677704, 32097130, 64194260, 128388520]

約数ペア:

[(1, 128388520), (2, 64194260), (4, 32097130), (5, 25677704), (8, 16048565), (10, 12838852), (13, 9876040), (20, 6419426), (26, 4938020), (37, 3469960), (40, 3209713), (52, 2469010), (65, 1975208), (74, 1734980), (104, 1234505), (130, 987604), (148, 867490), (185, 693992), (260, 493802), (296, 433745), (370, 346996), (481, 266920), (520, 246901), (740, 173498), (962, 133460), (1480, 86749), (1924, 66730), (2405, 53384), (3848, 33365), (4810, 26692), (6673, 19240), (9620, 13346)]