2188555280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{75781}}^1$

素因数の和:75832

約数の個数: 60

約数和(自身を含む): 5370367212

約数和(自身を除く): 3181811932

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 361, 380, 722, 760, 1444, 1520, 1805, 2888, 3610, 5776, 7220, 14440, 28880, 75781, 151562, 303124, 378905, 606248, 757810, 1212496, 1439839, 1515620, 2879678, 3031240, 5759356, 6062480, 7199195, 11518712, 14398390, 23037424, 27356941, 28796780, 54713882, 57593560, 109427764, 115187120, 136784705, 218855528, 273569410, 437711056, 547138820, 1094277640, 2188555280]

約数ペア:

[(1, 2188555280), (2, 1094277640), (4, 547138820), (5, 437711056), (8, 273569410), (10, 218855528), (16, 136784705), (19, 115187120), (20, 109427764), (38, 57593560), (40, 54713882), (76, 28796780), (80, 27356941), (95, 23037424), (152, 14398390), (190, 11518712), (304, 7199195), (361, 6062480), (380, 5759356), (722, 3031240), (760, 2879678), (1444, 1515620), (1520, 1439839), (1805, 1212496), (2888, 757810), (3610, 606248), (5776, 378905), (7220, 303124), (14440, 151562), (28880, 75781)]