81287760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{577}}^1\times {\mathrm{587}}^1$

素因数の和:1180

約数の個数: 80

約数和(自身を含む): 252858816

約数和(自身を除く): 171571056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 577, 587, 1154, 1174, 1731, 1761, 2308, 2348, 2885, 2935, 3462, 3522, 4616, 4696, 5770, 5870, 6924, 7044, 8655, 8805, 9232, 9392, 11540, 11740, 13848, 14088, 17310, 17610, 23080, 23480, 27696, 28176, 34620, 35220, 46160, 46960, 69240, 70440, 138480, 140880, 338699, 677398, 1016097, 1354796, 1693495, 2032194, 2709592, 3386990, 4064388, 5080485, 5419184, 6773980, 8128776, 10160970, 13547960, 16257552, 20321940, 27095920, 40643880, 81287760]

約数ペア:

[(1, 81287760), (2, 40643880), (3, 27095920), (4, 20321940), (5, 16257552), (6, 13547960), (8, 10160970), (10, 8128776), (12, 6773980), (15, 5419184), (16, 5080485), (20, 4064388), (24, 3386990), (30, 2709592), (40, 2032194), (48, 1693495), (60, 1354796), (80, 1016097), (120, 677398), (240, 338699), (577, 140880), (587, 138480), (1154, 70440), (1174, 69240), (1731, 46960), (1761, 46160), (2308, 35220), (2348, 34620), (2885, 28176), (2935, 27696), (3462, 23480), (3522, 23080), (4616, 17610), (4696, 17310), (5770, 14088), (5870, 13848), (6924, 11740), (7044, 11540), (8655, 9392), (8805, 9232)]