626451340

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{4289}}^1$

素因数の和:4474

約数の個数: 48

約数和(自身を含む): 1347746400

約数和(自身を除く): 721295060

約数列:

[1, 2, 4, 5, 10, 20, 67, 109, 134, 218, 268, 335, 436, 545, 670, 1090, 1340, 2180, 4289, 7303, 8578, 14606, 17156, 21445, 29212, 36515, 42890, 73030, 85780, 146060, 287363, 467501, 574726, 935002, 1149452, 1436815, 1870004, 2337505, 2873630, 4675010, 5747260, 9350020, 31322567, 62645134, 125290268, 156612835, 313225670, 626451340]

約数ペア:

[(1, 626451340), (2, 313225670), (4, 156612835), (5, 125290268), (10, 62645134), (20, 31322567), (67, 9350020), (109, 5747260), (134, 4675010), (218, 2873630), (268, 2337505), (335, 1870004), (436, 1436815), (545, 1149452), (670, 935002), (1090, 574726), (1340, 467501), (2180, 287363), (4289, 146060), (7303, 85780), (8578, 73030), (14606, 42890), (17156, 36515), (21445, 29212)]