25160840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 59304960

約数和(自身を除く): 34144120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 155, 197, 206, 248, 310, 394, 412, 515, 620, 788, 824, 985, 1030, 1240, 1576, 1970, 2060, 3193, 3940, 4120, 6107, 6386, 7880, 12214, 12772, 15965, 20291, 24428, 25544, 30535, 31930, 40582, 48856, 61070, 63860, 81164, 101455, 122140, 127720, 162328, 202910, 244280, 405820, 629021, 811640, 1258042, 2516084, 3145105, 5032168, 6290210, 12580420, 25160840]

約数ペア:

[(1, 25160840), (2, 12580420), (4, 6290210), (5, 5032168), (8, 3145105), (10, 2516084), (20, 1258042), (31, 811640), (40, 629021), (62, 405820), (103, 244280), (124, 202910), (155, 162328), (197, 127720), (206, 122140), (248, 101455), (310, 81164), (394, 63860), (412, 61070), (515, 48856), (620, 40582), (788, 31930), (824, 30535), (985, 25544), (1030, 24428), (1240, 20291), (1576, 15965), (1970, 12772), (2060, 12214), (3193, 7880), (3940, 6386), (4120, 6107)]