81808072

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 170136000

約数和(自身を除く): 88327928

約数列:

[1, 2, 4, 8, 19, 29, 38, 58, 67, 76, 116, 134, 152, 232, 268, 277, 536, 551, 554, 1102, 1108, 1273, 1943, 2204, 2216, 2546, 3886, 4408, 5092, 5263, 7772, 8033, 10184, 10526, 15544, 16066, 18559, 21052, 32132, 36917, 37118, 42104, 64264, 73834, 74236, 147668, 148472, 152627, 295336, 305254, 352621, 538211, 610508, 705242, 1076422, 1221016, 1410484, 2152844, 2820968, 4305688, 10226009, 20452018, 40904036, 81808072]

約数ペア:

[(1, 81808072), (2, 40904036), (4, 20452018), (8, 10226009), (19, 4305688), (29, 2820968), (38, 2152844), (58, 1410484), (67, 1221016), (76, 1076422), (116, 705242), (134, 610508), (152, 538211), (232, 352621), (268, 305254), (277, 295336), (536, 152627), (551, 148472), (554, 147668), (1102, 74236), (1108, 73834), (1273, 64264), (1943, 42104), (2204, 37118), (2216, 36917), (2546, 32132), (3886, 21052), (4408, 18559), (5092, 16066), (5263, 15544), (7772, 10526), (8033, 10184)]