80787720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{51787}}^1$

素因数の和:51814

約数の個数: 64

約数和(自身を含む): 261011520

約数和(自身を除く): 180223800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 51787, 103574, 155361, 207148, 258935, 310722, 414296, 517870, 621444, 673231, 776805, 1035740, 1242888, 1346462, 1553610, 2019693, 2071480, 2692924, 3107220, 3366155, 4039386, 5385848, 6214440, 6732310, 8078772, 10098465, 13464620, 16157544, 20196930, 26929240, 40393860, 80787720]

約数ペア:

[(1, 80787720), (2, 40393860), (3, 26929240), (4, 20196930), (5, 16157544), (6, 13464620), (8, 10098465), (10, 8078772), (12, 6732310), (13, 6214440), (15, 5385848), (20, 4039386), (24, 3366155), (26, 3107220), (30, 2692924), (39, 2071480), (40, 2019693), (52, 1553610), (60, 1346462), (65, 1242888), (78, 1035740), (104, 776805), (120, 673231), (130, 621444), (156, 517870), (195, 414296), (260, 310722), (312, 258935), (390, 207148), (520, 155361), (780, 103574), (1560, 51787)]