321246520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{601}}^1$

素因数の和:725

約数の個数: 128

約数和(自身を含む): 873815040

約数和(自身を除く): 552568520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 83, 92, 115, 140, 161, 166, 184, 230, 280, 322, 332, 415, 460, 581, 601, 644, 664, 805, 830, 920, 1162, 1202, 1288, 1610, 1660, 1909, 2324, 2404, 2905, 3005, 3220, 3320, 3818, 4207, 4648, 4808, 5810, 6010, 6440, 7636, 8414, 9545, 11620, 12020, 13363, 13823, 15272, 16828, 19090, 21035, 23240, 24040, 26726, 27646, 33656, 38180, 42070, 49883, 53452, 55292, 66815, 69115, 76360, 84140, 96761, 99766, 106904, 110584, 133630, 138230, 168280, 193522, 199532, 249415, 267260, 276460, 349181, 387044, 399064, 483805, 498830, 534520, 552920, 698362, 774088, 967610, 997660, 1147309, 1396724, 1745905, 1935220, 1995320, 2294618, 2793448, 3491810, 3870440, 4589236, 5736545, 6983620, 8031163, 9178472, 11473090, 13967240, 16062326, 22946180, 32124652, 40155815, 45892360, 64249304, 80311630, 160623260, 321246520]

約数ペア:

[(1, 321246520), (2, 160623260), (4, 80311630), (5, 64249304), (7, 45892360), (8, 40155815), (10, 32124652), (14, 22946180), (20, 16062326), (23, 13967240), (28, 11473090), (35, 9178472), (40, 8031163), (46, 6983620), (56, 5736545), (70, 4589236), (83, 3870440), (92, 3491810), (115, 2793448), (140, 2294618), (161, 1995320), (166, 1935220), (184, 1745905), (230, 1396724), (280, 1147309), (322, 997660), (332, 967610), (415, 774088), (460, 698362), (581, 552920), (601, 534520), (644, 498830), (664, 483805), (805, 399064), (830, 387044), (920, 349181), (1162, 276460), (1202, 267260), (1288, 249415), (1610, 199532), (1660, 193522), (1909, 168280), (2324, 138230), (2404, 133630), (2905, 110584), (3005, 106904), (3220, 99766), (3320, 96761), (3818, 84140), (4207, 76360), (4648, 69115), (4808, 66815), (5810, 55292), (6010, 53452), (6440, 49883), (7636, 42070), (8414, 38180), (9545, 33656), (11620, 27646), (12020, 26726), (13363, 24040), (13823, 23240), (15272, 21035), (16828, 19090)]