20238555280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{700781}}^1$

素因数の和:700832

約数の個数: 60

約数和(自身を含む): 49661617212

約数和(自身を除く): 29423061932

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, 700781, 1401562, 2803124, 3503905, 5606248, 7007810, 11212496, 13314839, 14015620, 26629678, 28031240, 53259356, 56062480, 66574195, 106518712, 133148390, 213037424, 252981941, 266296780, 505963882, 532593560, 1011927764, 1065187120, 1264909705, 2023855528, 2529819410, 4047711056, 5059638820, 10119277640, 20238555280]

約数ペア:

[(1, 20238555280), (2, 10119277640), (4, 5059638820), (5, 4047711056), (8, 2529819410), (10, 2023855528), (16, 1264909705), (19, 1065187120), (20, 1011927764), (38, 532593560), (40, 505963882), (76, 266296780), (80, 252981941), (95, 213037424), (152, 133148390), (190, 106518712), (304, 66574195), (361, 56062480), (380, 53259356), (722, 28031240), (760, 26629678), (1444, 14015620), (1520, 13314839), (1805, 11212496), (2888, 7007810), (3610, 5606248), (5776, 3503905), (7220, 2803124), (14440, 1401562), (28880, 700781)]