19404890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:167

約数の個数: 64

約数和(自身を含む): 39191040

約数和(自身を除く): 19786150

約数列:

[1, 2, 5, 10, 19, 38, 41, 47, 53, 82, 94, 95, 106, 190, 205, 235, 265, 410, 470, 530, 779, 893, 1007, 1558, 1786, 1927, 2014, 2173, 2491, 3854, 3895, 4346, 4465, 4982, 5035, 7790, 8930, 9635, 10070, 10865, 12455, 19270, 21730, 24910, 36613, 41287, 47329, 73226, 82574, 94658, 102131, 183065, 204262, 206435, 236645, 366130, 412870, 473290, 510655, 1021310, 1940489, 3880978, 9702445, 19404890]

約数ペア:

[(1, 19404890), (2, 9702445), (5, 3880978), (10, 1940489), (19, 1021310), (38, 510655), (41, 473290), (47, 412870), (53, 366130), (82, 236645), (94, 206435), (95, 204262), (106, 183065), (190, 102131), (205, 94658), (235, 82574), (265, 73226), (410, 47329), (470, 41287), (530, 36613), (779, 24910), (893, 21730), (1007, 19270), (1558, 12455), (1786, 10865), (1927, 10070), (2014, 9635), (2173, 8930), (2491, 7790), (3854, 5035), (3895, 4982), (4346, 4465)]