90095980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1759}}^1$

素因数の和:1978

約数の個数: 48

約数和(自身を含む): 204906240

約数和(自身を除く): 114810260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 1759, 1970, 2561, 3518, 3940, 5122, 7036, 8795, 10244, 12805, 17590, 22867, 25610, 35180, 45734, 51220, 91468, 114335, 228670, 346523, 457340, 693046, 1386092, 1732615, 3465230, 4504799, 6930460, 9009598, 18019196, 22523995, 45047990, 90095980]

約数ペア:

[(1, 90095980), (2, 45047990), (4, 22523995), (5, 18019196), (10, 9009598), (13, 6930460), (20, 4504799), (26, 3465230), (52, 1732615), (65, 1386092), (130, 693046), (197, 457340), (260, 346523), (394, 228670), (788, 114335), (985, 91468), (1759, 51220), (1970, 45734), (2561, 35180), (3518, 25610), (3940, 22867), (5122, 17590), (7036, 12805), (8795, 10244)]