90489780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26459}}^1$

素因数の和:26493

約数の個数: 72

約数和(自身を含む): 288943200

約数和(自身を除く): 198453420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 26459, 52918, 79377, 105836, 132295, 158754, 238131, 264590, 317508, 396885, 476262, 502721, 529180, 793770, 952524, 1005442, 1190655, 1508163, 1587540, 2010884, 2381310, 2513605, 3016326, 4524489, 4762620, 5027210, 6032652, 7540815, 9048978, 10054420, 15081630, 18097956, 22622445, 30163260, 45244890, 90489780]

約数ペア:

[(1, 90489780), (2, 45244890), (3, 30163260), (4, 22622445), (5, 18097956), (6, 15081630), (9, 10054420), (10, 9048978), (12, 7540815), (15, 6032652), (18, 5027210), (19, 4762620), (20, 4524489), (30, 3016326), (36, 2513605), (38, 2381310), (45, 2010884), (57, 1587540), (60, 1508163), (76, 1190655), (90, 1005442), (95, 952524), (114, 793770), (171, 529180), (180, 502721), (190, 476262), (228, 396885), (285, 317508), (342, 264590), (380, 238131), (570, 158754), (684, 132295), (855, 105836), (1140, 79377), (1710, 52918), (3420, 26459)]