78311120

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12391}}^1$

素因数の和:12483

約数の個数: 40

約数和(自身を含む): 184392960

約数和(自身を除く): 106081840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 12391, 24782, 49564, 61955, 99128, 123910, 198256, 247820, 495640, 978889, 991280, 1957778, 3915556, 4894445, 7831112, 9788890, 15662224, 19577780, 39155560, 78311120]

約数ペア:

[(1, 78311120), (2, 39155560), (4, 19577780), (5, 15662224), (8, 9788890), (10, 7831112), (16, 4894445), (20, 3915556), (40, 1957778), (79, 991280), (80, 978889), (158, 495640), (316, 247820), (395, 198256), (632, 123910), (790, 99128), (1264, 61955), (1580, 49564), (3160, 24782), (6320, 12391)]