81268400

素因数分解:

$2^4\times 5^2\times {\mathrm{137}}^1\times {\mathrm{1483}}^1$

素因数の和:1638

約数の個数: 60

約数和(自身を含む): 196805112

約数和(自身を除く): 115536712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 137, 200, 274, 400, 548, 685, 1096, 1370, 1483, 2192, 2740, 2966, 3425, 5480, 5932, 6850, 7415, 10960, 11864, 13700, 14830, 23728, 27400, 29660, 37075, 54800, 59320, 74150, 118640, 148300, 203171, 296600, 406342, 593200, 812684, 1015855, 1625368, 2031710, 3250736, 4063420, 5079275, 8126840, 10158550, 16253680, 20317100, 40634200, 81268400]

約数ペア:

[(1, 81268400), (2, 40634200), (4, 20317100), (5, 16253680), (8, 10158550), (10, 8126840), (16, 5079275), (20, 4063420), (25, 3250736), (40, 2031710), (50, 1625368), (80, 1015855), (100, 812684), (137, 593200), (200, 406342), (274, 296600), (400, 203171), (548, 148300), (685, 118640), (1096, 74150), (1370, 59320), (1483, 54800), (2192, 37075), (2740, 29660), (2966, 27400), (3425, 23728), (5480, 14830), (5932, 13700), (6850, 11864), (7415, 10960)]