18609968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:334

約数の個数: 80

約数和(自身を含む): 43434720

約数和(自身を除く): 24824752

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 34, 38, 52, 68, 76, 104, 136, 152, 208, 221, 247, 272, 277, 304, 323, 442, 494, 554, 646, 884, 988, 1108, 1292, 1768, 1976, 2216, 2584, 3536, 3601, 3952, 4199, 4432, 4709, 5168, 5263, 7202, 8398, 9418, 10526, 14404, 16796, 18836, 21052, 28808, 33592, 37672, 42104, 57616, 61217, 67184, 68419, 75344, 84208, 89471, 122434, 136838, 178942, 244868, 273676, 357884, 489736, 547352, 715768, 979472, 1094704, 1163123, 1431536, 2326246, 4652492, 9304984, 18609968]

約数ペア:

[(1, 18609968), (2, 9304984), (4, 4652492), (8, 2326246), (13, 1431536), (16, 1163123), (17, 1094704), (19, 979472), (26, 715768), (34, 547352), (38, 489736), (52, 357884), (68, 273676), (76, 244868), (104, 178942), (136, 136838), (152, 122434), (208, 89471), (221, 84208), (247, 75344), (272, 68419), (277, 67184), (304, 61217), (323, 57616), (442, 42104), (494, 37672), (554, 33592), (646, 28808), (884, 21052), (988, 18836), (1108, 16796), (1292, 14404), (1768, 10526), (1976, 9418), (2216, 8398), (2584, 7202), (3536, 5263), (3601, 5168), (3952, 4709), (4199, 4432)]