18401728

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:477

約数の個数: 56

約数和(自身を含む): 39573200

約数和(自身を除く): 21171472

約数列:

[1, 2, 4, 8, 16, 19, 32, 37, 38, 64, 74, 76, 148, 152, 296, 304, 409, 592, 608, 703, 818, 1184, 1216, 1406, 1636, 2368, 2812, 3272, 5624, 6544, 7771, 11248, 13088, 15133, 15542, 22496, 26176, 30266, 31084, 44992, 60532, 62168, 121064, 124336, 242128, 248672, 287527, 484256, 497344, 575054, 968512, 1150108, 2300216, 4600432, 9200864, 18401728]

約数ペア:

[(1, 18401728), (2, 9200864), (4, 4600432), (8, 2300216), (16, 1150108), (19, 968512), (32, 575054), (37, 497344), (38, 484256), (64, 287527), (74, 248672), (76, 242128), (148, 124336), (152, 121064), (296, 62168), (304, 60532), (409, 44992), (592, 31084), (608, 30266), (703, 26176), (818, 22496), (1184, 15542), (1216, 15133), (1406, 13088), (1636, 11248), (2368, 7771), (2812, 6544), (3272, 5624)]