18475904

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:211

約数の個数: 64

約数和(自身を含む): 39657600

約数和(自身を除く): 21181696

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 71, 76, 107, 128, 142, 152, 214, 284, 304, 428, 568, 608, 856, 1136, 1216, 1349, 1712, 2033, 2272, 2432, 2698, 3424, 4066, 4544, 5396, 6848, 7597, 8132, 9088, 10792, 13696, 15194, 16264, 21584, 30388, 32528, 43168, 60776, 65056, 86336, 121552, 130112, 144343, 172672, 243104, 260224, 288686, 486208, 577372, 972416, 1154744, 2309488, 4618976, 9237952, 18475904]

約数ペア:

[(1, 18475904), (2, 9237952), (4, 4618976), (8, 2309488), (16, 1154744), (19, 972416), (32, 577372), (38, 486208), (64, 288686), (71, 260224), (76, 243104), (107, 172672), (128, 144343), (142, 130112), (152, 121552), (214, 86336), (284, 65056), (304, 60776), (428, 43168), (568, 32528), (608, 30388), (856, 21584), (1136, 16264), (1216, 15194), (1349, 13696), (1712, 10792), (2033, 9088), (2272, 8132), (2432, 7597), (2698, 6848), (3424, 5396), (4066, 4544)]