9980450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:227

約数の個数: 48

約数和(自身を含む): 19713024

約数和(自身を除く): 9732574

約数列:

[1, 2, 5, 10, 25, 31, 47, 50, 62, 94, 137, 155, 235, 274, 310, 470, 685, 775, 1175, 1370, 1457, 1550, 2350, 2914, 3425, 4247, 6439, 6850, 7285, 8494, 12878, 14570, 21235, 32195, 36425, 42470, 64390, 72850, 106175, 160975, 199609, 212350, 321950, 399218, 998045, 1996090, 4990225, 9980450]

約数ペア:

[(1, 9980450), (2, 4990225), (5, 1996090), (10, 998045), (25, 399218), (31, 321950), (47, 212350), (50, 199609), (62, 160975), (94, 106175), (137, 72850), (155, 64390), (235, 42470), (274, 36425), (310, 32195), (470, 21235), (685, 14570), (775, 12878), (1175, 8494), (1370, 7285), (1457, 6850), (1550, 6439), (2350, 4247), (2914, 3425)]