201919916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:255

約数の個数: 96

約数和(自身を含む): 428440320

約数和(自身を除く): 226520404

約数列:

[1, 2, 4, 11, 19, 22, 38, 41, 43, 44, 76, 82, 86, 137, 164, 172, 209, 274, 418, 451, 473, 548, 779, 817, 836, 902, 946, 1507, 1558, 1634, 1763, 1804, 1892, 2603, 3014, 3116, 3268, 3526, 5206, 5617, 5891, 6028, 7052, 8569, 8987, 10412, 11234, 11782, 17138, 17974, 19393, 22468, 23564, 28633, 33497, 34276, 35948, 38786, 57266, 61787, 64801, 66994, 77572, 106723, 111929, 114532, 123574, 129602, 133988, 213446, 223858, 241531, 247148, 259204, 368467, 426892, 447716, 483062, 736934, 966124, 1173953, 1231219, 1473868, 2347906, 2462438, 2656841, 4589089, 4695812, 4924876, 5313682, 9178178, 10627364, 18356356, 50479979, 100959958, 201919916]

約数ペア:

[(1, 201919916), (2, 100959958), (4, 50479979), (11, 18356356), (19, 10627364), (22, 9178178), (38, 5313682), (41, 4924876), (43, 4695812), (44, 4589089), (76, 2656841), (82, 2462438), (86, 2347906), (137, 1473868), (164, 1231219), (172, 1173953), (209, 966124), (274, 736934), (418, 483062), (451, 447716), (473, 426892), (548, 368467), (779, 259204), (817, 247148), (836, 241531), (902, 223858), (946, 213446), (1507, 133988), (1558, 129602), (1634, 123574), (1763, 114532), (1804, 111929), (1892, 106723), (2603, 77572), (3014, 66994), (3116, 64801), (3268, 61787), (3526, 57266), (5206, 38786), (5617, 35948), (5891, 34276), (6028, 33497), (7052, 28633), (8569, 23564), (8987, 22468), (10412, 19393), (11234, 17974), (11782, 17138)]