921091840

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:358

約数の個数: 144

約数和(自身を含む): 2307594240

約数和(自身を除く): 1386502400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 139, 155, 160, 167, 248, 256, 278, 310, 320, 334, 496, 556, 620, 640, 668, 695, 835, 992, 1112, 1240, 1280, 1336, 1390, 1670, 1984, 2224, 2480, 2672, 2780, 3340, 3968, 4309, 4448, 4960, 5177, 5344, 5560, 6680, 7936, 8618, 8896, 9920, 10354, 10688, 11120, 13360, 17236, 17792, 19840, 20708, 21376, 21545, 22240, 23213, 25885, 26720, 34472, 35584, 39680, 41416, 42752, 43090, 44480, 46426, 51770, 53440, 68944, 82832, 86180, 88960, 92852, 103540, 106880, 116065, 137888, 165664, 172360, 177920, 185704, 207080, 213760, 232130, 275776, 331328, 344720, 371408, 414160, 464260, 551552, 662656, 689440, 719603, 742816, 828320, 928520, 1103104, 1325312, 1378880, 1439206, 1485632, 1656640, 1857040, 2757760, 2878412, 2971264, 3313280, 3598015, 3714080, 5515520, 5756824, 5942528, 6626560, 7196030, 7428160, 11513648, 14392060, 14856320, 23027296, 28784120, 29712640, 46054592, 57568240, 92109184, 115136480, 184218368, 230272960, 460545920, 921091840]

約数ペア:

[(1, 921091840), (2, 460545920), (4, 230272960), (5, 184218368), (8, 115136480), (10, 92109184), (16, 57568240), (20, 46054592), (31, 29712640), (32, 28784120), (40, 23027296), (62, 14856320), (64, 14392060), (80, 11513648), (124, 7428160), (128, 7196030), (139, 6626560), (155, 5942528), (160, 5756824), (167, 5515520), (248, 3714080), (256, 3598015), (278, 3313280), (310, 2971264), (320, 2878412), (334, 2757760), (496, 1857040), (556, 1656640), (620, 1485632), (640, 1439206), (668, 1378880), (695, 1325312), (835, 1103104), (992, 928520), (1112, 828320), (1240, 742816), (1280, 719603), (1336, 689440), (1390, 662656), (1670, 551552), (1984, 464260), (2224, 414160), (2480, 371408), (2672, 344720), (2780, 331328), (3340, 275776), (3968, 232130), (4309, 213760), (4448, 207080), (4960, 185704), (5177, 177920), (5344, 172360), (5560, 165664), (6680, 137888), (7936, 116065), (8618, 106880), (8896, 103540), (9920, 92852), (10354, 88960), (10688, 86180), (11120, 82832), (13360, 68944), (17236, 53440), (17792, 51770), (19840, 46426), (20708, 44480), (21376, 43090), (21545, 42752), (22240, 41416), (23213, 39680), (25885, 35584), (26720, 34472)]