39138640

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:364

約数の個数: 80

約数和(自身を含む): 96422400

約数和(自身を除く): 57283760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 89, 92, 115, 178, 184, 230, 239, 356, 368, 445, 460, 478, 712, 890, 920, 956, 1195, 1424, 1780, 1840, 1912, 2047, 2390, 3560, 3824, 4094, 4780, 5497, 7120, 8188, 9560, 10235, 10994, 16376, 19120, 20470, 21271, 21988, 27485, 32752, 40940, 42542, 43976, 54970, 81880, 85084, 87952, 106355, 109940, 163760, 170168, 212710, 219880, 340336, 425420, 439760, 489233, 850840, 978466, 1701680, 1956932, 2446165, 3913864, 4892330, 7827728, 9784660, 19569320, 39138640]

約数ペア:

[(1, 39138640), (2, 19569320), (4, 9784660), (5, 7827728), (8, 4892330), (10, 3913864), (16, 2446165), (20, 1956932), (23, 1701680), (40, 978466), (46, 850840), (80, 489233), (89, 439760), (92, 425420), (115, 340336), (178, 219880), (184, 212710), (230, 170168), (239, 163760), (356, 109940), (368, 106355), (445, 87952), (460, 85084), (478, 81880), (712, 54970), (890, 43976), (920, 42542), (956, 40940), (1195, 32752), (1424, 27485), (1780, 21988), (1840, 21271), (1912, 20470), (2047, 19120), (2390, 16376), (3560, 10994), (3824, 10235), (4094, 9560), (4780, 8188), (5497, 7120)]