398889790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{4957}}^1$

素因数の和:5596

約数の個数: 32

約数和(自身を含む): 774637920

約数和(自身を除く): 375748130

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 619, 1238, 3095, 4957, 6190, 8047, 9914, 16094, 24785, 40235, 49570, 64441, 80470, 128882, 322205, 644410, 3068383, 6136766, 15341915, 30683830, 39888979, 79777958, 199444895, 398889790]

約数ペア:

[(1, 398889790), (2, 199444895), (5, 79777958), (10, 39888979), (13, 30683830), (26, 15341915), (65, 6136766), (130, 3068383), (619, 644410), (1238, 322205), (3095, 128882), (4957, 80470), (6190, 64441), (8047, 49570), (9914, 40235), (16094, 24785)]