76128520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{521}}^1$

素因数の和:826

約数の個数: 64

約数和(自身を含む): 185477040

約数和(自身を除く): 109348520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 281, 520, 521, 562, 1042, 1124, 1405, 2084, 2248, 2605, 2810, 3653, 4168, 5210, 5620, 6773, 7306, 10420, 11240, 13546, 14612, 18265, 20840, 27092, 29224, 33865, 36530, 54184, 67730, 73060, 135460, 146120, 146401, 270920, 292802, 585604, 732005, 1171208, 1464010, 1903213, 2928020, 3806426, 5856040, 7612852, 9516065, 15225704, 19032130, 38064260, 76128520]

約数ペア:

[(1, 76128520), (2, 38064260), (4, 19032130), (5, 15225704), (8, 9516065), (10, 7612852), (13, 5856040), (20, 3806426), (26, 2928020), (40, 1903213), (52, 1464010), (65, 1171208), (104, 732005), (130, 585604), (260, 292802), (281, 270920), (520, 146401), (521, 146120), (562, 135460), (1042, 73060), (1124, 67730), (1405, 54184), (2084, 36530), (2248, 33865), (2605, 29224), (2810, 27092), (3653, 20840), (4168, 18265), (5210, 14612), (5620, 13546), (6773, 11240), (7306, 10420)]