2389605940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{383}}^1\times {\mathrm{1987}}^1$

素因数の和:2536

約数の個数: 48

約数和(自身を含む): 5065869312

約数和(自身を除く): 2676263372

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 383, 628, 766, 785, 1532, 1570, 1915, 1987, 3140, 3830, 3974, 7660, 7948, 9935, 19870, 39740, 60131, 120262, 240524, 300655, 311959, 601310, 623918, 761021, 1202620, 1247836, 1522042, 1559795, 3044084, 3119590, 3805105, 6239180, 7610210, 15220420, 119480297, 238960594, 477921188, 597401485, 1194802970, 2389605940]

約数ペア:

[(1, 2389605940), (2, 1194802970), (4, 597401485), (5, 477921188), (10, 238960594), (20, 119480297), (157, 15220420), (314, 7610210), (383, 6239180), (628, 3805105), (766, 3119590), (785, 3044084), (1532, 1559795), (1570, 1522042), (1915, 1247836), (1987, 1202620), (3140, 761021), (3830, 623918), (3974, 601310), (7660, 311959), (7948, 300655), (9935, 240524), (19870, 120262), (39740, 60131)]