17818640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{677}}^1$

素因数の和:744

約数の個数: 80

約数和(自身を含む): 48425472

約数和(自身を除く): 30606832

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 677, 752, 940, 1316, 1354, 1645, 1880, 2632, 2708, 3290, 3385, 3760, 4739, 5264, 5416, 6580, 6770, 9478, 10832, 13160, 13540, 18956, 23695, 26320, 27080, 31819, 37912, 47390, 54160, 63638, 75824, 94780, 127276, 159095, 189560, 222733, 254552, 318190, 379120, 445466, 509104, 636380, 890932, 1113665, 1272760, 1781864, 2227330, 2545520, 3563728, 4454660, 8909320, 17818640]

約数ペア:

[(1, 17818640), (2, 8909320), (4, 4454660), (5, 3563728), (7, 2545520), (8, 2227330), (10, 1781864), (14, 1272760), (16, 1113665), (20, 890932), (28, 636380), (35, 509104), (40, 445466), (47, 379120), (56, 318190), (70, 254552), (80, 222733), (94, 189560), (112, 159095), (140, 127276), (188, 94780), (235, 75824), (280, 63638), (329, 54160), (376, 47390), (470, 37912), (560, 31819), (658, 27080), (677, 26320), (752, 23695), (940, 18956), (1316, 13540), (1354, 13160), (1645, 10832), (1880, 9478), (2632, 6770), (2708, 6580), (3290, 5416), (3385, 5264), (3760, 4739)]