19699504

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 45175680

約数和(自身を除く): 25476176

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 43, 44, 76, 86, 88, 137, 152, 172, 176, 209, 274, 304, 344, 418, 473, 548, 688, 817, 836, 946, 1096, 1507, 1634, 1672, 1892, 2192, 2603, 3014, 3268, 3344, 3784, 5206, 5891, 6028, 6536, 7568, 8987, 10412, 11782, 12056, 13072, 17974, 20824, 23564, 24112, 28633, 35948, 41648, 47128, 57266, 64801, 71896, 94256, 111929, 114532, 129602, 143792, 223858, 229064, 259204, 447716, 458128, 518408, 895432, 1036816, 1231219, 1790864, 2462438, 4924876, 9849752, 19699504]

約数ペア:

[(1, 19699504), (2, 9849752), (4, 4924876), (8, 2462438), (11, 1790864), (16, 1231219), (19, 1036816), (22, 895432), (38, 518408), (43, 458128), (44, 447716), (76, 259204), (86, 229064), (88, 223858), (137, 143792), (152, 129602), (172, 114532), (176, 111929), (209, 94256), (274, 71896), (304, 64801), (344, 57266), (418, 47128), (473, 41648), (548, 35948), (688, 28633), (817, 24112), (836, 23564), (946, 20824), (1096, 17974), (1507, 13072), (1634, 12056), (1672, 11782), (1892, 10412), (2192, 8987), (2603, 7568), (3014, 6536), (3268, 6028), (3344, 5891), (3784, 5206)]