80535760

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12743}}^1$

素因数の和:12835

約数の個数: 40

約数和(自身を含む): 189630720

約数和(自身を除く): 109094960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 12743, 25486, 50972, 63715, 101944, 127430, 203888, 254860, 509720, 1006697, 1019440, 2013394, 4026788, 5033485, 8053576, 10066970, 16107152, 20133940, 40267880, 80535760]

約数ペア:

[(1, 80535760), (2, 40267880), (4, 20133940), (5, 16107152), (8, 10066970), (10, 8053576), (16, 5033485), (20, 4026788), (40, 2013394), (79, 1019440), (80, 1006697), (158, 509720), (316, 254860), (395, 203888), (632, 127430), (790, 101944), (1264, 63715), (1580, 50972), (3160, 25486), (6320, 12743)]