19475440

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{7853}}^1$

素因数の和:7897

約数の個数: 40

約数和(自身を含む): 46747008

約数和(自身を除く): 27271568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 7853, 15706, 31412, 39265, 62824, 78530, 125648, 157060, 243443, 314120, 486886, 628240, 973772, 1217215, 1947544, 2434430, 3895088, 4868860, 9737720, 19475440]

約数ペア:

[(1, 19475440), (2, 9737720), (4, 4868860), (5, 3895088), (8, 2434430), (10, 1947544), (16, 1217215), (20, 973772), (31, 628240), (40, 486886), (62, 314120), (80, 243443), (124, 157060), (155, 125648), (248, 78530), (310, 62824), (496, 39265), (620, 31412), (1240, 15706), (2480, 7853)]