1285191920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:343

約数の個数: 160

約数和(自身を含む): 3254791680

約数和(自身を除く): 1969599760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 61, 76, 80, 83, 95, 122, 152, 166, 167, 190, 244, 304, 305, 332, 334, 380, 415, 488, 610, 664, 668, 760, 830, 835, 976, 1159, 1220, 1328, 1336, 1520, 1577, 1660, 1670, 2318, 2440, 2672, 3154, 3173, 3320, 3340, 4636, 4880, 5063, 5795, 6308, 6346, 6640, 6680, 7885, 9272, 10126, 10187, 11590, 12616, 12692, 13360, 13861, 15770, 15865, 18544, 20252, 20374, 23180, 25232, 25315, 25384, 27722, 31540, 31730, 40504, 40748, 46360, 50630, 50768, 50935, 55444, 63080, 63460, 69305, 81008, 81496, 92720, 96197, 101260, 101870, 110888, 126160, 126920, 138610, 162992, 192394, 193553, 202520, 203740, 221776, 253840, 263359, 277220, 384788, 387106, 405040, 407480, 480985, 526718, 554440, 769576, 774212, 814960, 845521, 961970, 967765, 1053436, 1108880, 1316795, 1539152, 1548424, 1691042, 1923940, 1935530, 2106872, 2633590, 3096848, 3382084, 3847880, 3871060, 4213744, 4227605, 5267180, 6764168, 7695760, 7742120, 8455210, 10534360, 13528336, 15484240, 16064899, 16910420, 21068720, 32129798, 33820840, 64259596, 67641680, 80324495, 128519192, 160648990, 257038384, 321297980, 642595960, 1285191920]

約数ペア:

[(1, 1285191920), (2, 642595960), (4, 321297980), (5, 257038384), (8, 160648990), (10, 128519192), (16, 80324495), (19, 67641680), (20, 64259596), (38, 33820840), (40, 32129798), (61, 21068720), (76, 16910420), (80, 16064899), (83, 15484240), (95, 13528336), (122, 10534360), (152, 8455210), (166, 7742120), (167, 7695760), (190, 6764168), (244, 5267180), (304, 4227605), (305, 4213744), (332, 3871060), (334, 3847880), (380, 3382084), (415, 3096848), (488, 2633590), (610, 2106872), (664, 1935530), (668, 1923940), (760, 1691042), (830, 1548424), (835, 1539152), (976, 1316795), (1159, 1108880), (1220, 1053436), (1328, 967765), (1336, 961970), (1520, 845521), (1577, 814960), (1660, 774212), (1670, 769576), (2318, 554440), (2440, 526718), (2672, 480985), (3154, 407480), (3173, 405040), (3320, 387106), (3340, 384788), (4636, 277220), (4880, 263359), (5063, 253840), (5795, 221776), (6308, 203740), (6346, 202520), (6640, 193553), (6680, 192394), (7885, 162992), (9272, 138610), (10126, 126920), (10187, 126160), (11590, 110888), (12616, 101870), (12692, 101260), (13360, 96197), (13861, 92720), (15770, 81496), (15865, 81008), (18544, 69305), (20252, 63460), (20374, 63080), (23180, 55444), (25232, 50935), (25315, 50768), (25384, 50630), (27722, 46360), (31540, 40748), (31730, 40504)]