51666320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1789}}^1$

素因数の和:1840

約数の個数: 60

約数和(自身を含む): 126850140

約数和(自身を除く): 75183820

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, 1789, 1805, 2888, 3578, 3610, 5776, 7156, 7220, 8945, 14312, 14440, 17890, 28624, 28880, 33991, 35780, 67982, 71560, 135964, 143120, 169955, 271928, 339910, 543856, 645829, 679820, 1291658, 1359640, 2583316, 2719280, 3229145, 5166632, 6458290, 10333264, 12916580, 25833160, 51666320]

約数ペア:

[(1, 51666320), (2, 25833160), (4, 12916580), (5, 10333264), (8, 6458290), (10, 5166632), (16, 3229145), (19, 2719280), (20, 2583316), (38, 1359640), (40, 1291658), (76, 679820), (80, 645829), (95, 543856), (152, 339910), (190, 271928), (304, 169955), (361, 143120), (380, 135964), (722, 71560), (760, 67982), (1444, 35780), (1520, 33991), (1789, 28880), (1805, 28624), (2888, 17890), (3578, 14440), (3610, 14312), (5776, 8945), (7156, 7220)]