168983920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{809}}^1$

素因数の和:1202

約数の個数: 80

約数和(自身を含む): 450774720

約数和(自身を除く): 281790800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 373, 560, 746, 809, 1492, 1618, 1865, 2611, 2984, 3236, 3730, 4045, 5222, 5663, 5968, 6472, 7460, 8090, 10444, 11326, 12944, 13055, 14920, 16180, 20888, 22652, 26110, 28315, 29840, 32360, 41776, 45304, 52220, 56630, 64720, 90608, 104440, 113260, 208880, 226520, 301757, 453040, 603514, 1207028, 1508785, 2112299, 2414056, 3017570, 4224598, 4828112, 6035140, 8449196, 10561495, 12070280, 16898392, 21122990, 24140560, 33796784, 42245980, 84491960, 168983920]

約数ペア:

[(1, 168983920), (2, 84491960), (4, 42245980), (5, 33796784), (7, 24140560), (8, 21122990), (10, 16898392), (14, 12070280), (16, 10561495), (20, 8449196), (28, 6035140), (35, 4828112), (40, 4224598), (56, 3017570), (70, 2414056), (80, 2112299), (112, 1508785), (140, 1207028), (280, 603514), (373, 453040), (560, 301757), (746, 226520), (809, 208880), (1492, 113260), (1618, 104440), (1865, 90608), (2611, 64720), (2984, 56630), (3236, 52220), (3730, 45304), (4045, 41776), (5222, 32360), (5663, 29840), (5968, 28315), (6472, 26110), (7460, 22652), (8090, 20888), (10444, 16180), (11326, 14920), (12944, 13055)]