20147347240

素因数分解:

$2^3\times 5^1\times {\mathrm{18979}}^1\times {\mathrm{26539}}^1$

素因数の和:45529

約数の個数: 32

約数和(自身を含む): 45335628000

約数和(自身を除く): 25188280760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 18979, 26539, 37958, 53078, 75916, 94895, 106156, 132695, 151832, 189790, 212312, 265390, 379580, 530780, 759160, 1061560, 503683681, 1007367362, 2014734724, 2518418405, 4029469448, 5036836810, 10073673620, 20147347240]

約数ペア:

[(1, 20147347240), (2, 10073673620), (4, 5036836810), (5, 4029469448), (8, 2518418405), (10, 2014734724), (20, 1007367362), (40, 503683681), (18979, 1061560), (26539, 759160), (37958, 530780), (53078, 379580), (75916, 265390), (94895, 212312), (106156, 189790), (132695, 151832)]