20786881680

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28870669}}^1$

素因数の和:28870688

約数の個数: 60

約数和(自身を含む): 69809280060

約数和(自身を除く): 49022398380

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28870669, 57741338, 86612007, 115482676, 144353345, 173224014, 230965352, 259836021, 288706690, 346448028, 433060035, 461930704, 519672042, 577413380, 692896056, 866120070, 1039344084, 1154826760, 1299180105, 1385792112, 1732240140, 2078688168, 2309653520, 2598360210, 3464480280, 4157376336, 5196720420, 6928960560, 10393440840, 20786881680]

約数ペア:

[(1, 20786881680), (2, 10393440840), (3, 6928960560), (4, 5196720420), (5, 4157376336), (6, 3464480280), (8, 2598360210), (9, 2309653520), (10, 2078688168), (12, 1732240140), (15, 1385792112), (16, 1299180105), (18, 1154826760), (20, 1039344084), (24, 866120070), (30, 692896056), (36, 577413380), (40, 519672042), (45, 461930704), (48, 433060035), (60, 346448028), (72, 288706690), (80, 259836021), (90, 230965352), (120, 173224014), (144, 144353345), (180, 115482676), (240, 86612007), (360, 57741338), (720, 28870669)]