15201720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{42227}}^1$

素因数の和:42244

約数の個数: 48

約数和(自身を含む): 49406760

約数和(自身を除く): 34205040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 42227, 84454, 126681, 168908, 211135, 253362, 337816, 380043, 422270, 506724, 633405, 760086, 844540, 1013448, 1266810, 1520172, 1689080, 1900215, 2533620, 3040344, 3800430, 5067240, 7600860, 15201720]

約数ペア:

[(1, 15201720), (2, 7600860), (3, 5067240), (4, 3800430), (5, 3040344), (6, 2533620), (8, 1900215), (9, 1689080), (10, 1520172), (12, 1266810), (15, 1013448), (18, 844540), (20, 760086), (24, 633405), (30, 506724), (36, 422270), (40, 380043), (45, 337816), (60, 253362), (72, 211135), (90, 168908), (120, 126681), (180, 84454), (360, 42227)]