20378203155

素因数分解:

$3^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{177797}}^1$

素因数の和:178097

約数の個数: 40

約数和(自身を含む): 36659102832

約数和(自身を除く): 16280899677

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 283, 405, 849, 1415, 2547, 4245, 7641, 12735, 22923, 38205, 114615, 177797, 533391, 888985, 1600173, 2666955, 4800519, 8000865, 14401557, 24002595, 50316551, 72007785, 150949653, 251582755, 452848959, 754748265, 1358546877, 2264244795, 4075640631, 6792734385, 20378203155]

約数ペア:

[(1, 20378203155), (3, 6792734385), (5, 4075640631), (9, 2264244795), (15, 1358546877), (27, 754748265), (45, 452848959), (81, 251582755), (135, 150949653), (283, 72007785), (405, 50316551), (849, 24002595), (1415, 14401557), (2547, 8000865), (4245, 4800519), (7641, 2666955), (12735, 1600173), (22923, 888985), (38205, 533391), (114615, 177797)]