28406900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{14951}}^1$

素因数の和:14984

約数の個数: 36

約数和(自身を含む): 64891680

約数和(自身を除く): 36484780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 14951, 29902, 59804, 74755, 149510, 284069, 299020, 373775, 568138, 747550, 1136276, 1420345, 1495100, 2840690, 5681380, 7101725, 14203450, 28406900]

約数ペア:

[(1, 28406900), (2, 14203450), (4, 7101725), (5, 5681380), (10, 2840690), (19, 1495100), (20, 1420345), (25, 1136276), (38, 747550), (50, 568138), (76, 373775), (95, 299020), (100, 284069), (190, 149510), (380, 74755), (475, 59804), (950, 29902), (1900, 14951)]