311626880

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:302

約数の個数: 128

約数和(自身を含む): 781401600

約数和(自身を除く): 469774720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 113, 124, 128, 139, 155, 160, 226, 248, 278, 310, 320, 452, 496, 556, 565, 620, 640, 695, 904, 992, 1112, 1130, 1240, 1390, 1808, 1984, 2224, 2260, 2480, 2780, 3503, 3616, 3968, 4309, 4448, 4520, 4960, 5560, 7006, 7232, 8618, 8896, 9040, 9920, 11120, 14012, 14464, 15707, 17236, 17515, 17792, 18080, 19840, 21545, 22240, 28024, 31414, 34472, 35030, 36160, 43090, 44480, 56048, 62828, 68944, 70060, 72320, 78535, 86180, 88960, 112096, 125656, 137888, 140120, 157070, 172360, 224192, 251312, 275776, 280240, 314140, 344720, 448384, 486917, 502624, 551552, 560480, 628280, 689440, 973834, 1005248, 1120960, 1256560, 1378880, 1947668, 2010496, 2241920, 2434585, 2513120, 2757760, 3895336, 4869170, 5026240, 7790672, 9738340, 10052480, 15581344, 19476680, 31162688, 38953360, 62325376, 77906720, 155813440, 311626880]

約数ペア:

[(1, 311626880), (2, 155813440), (4, 77906720), (5, 62325376), (8, 38953360), (10, 31162688), (16, 19476680), (20, 15581344), (31, 10052480), (32, 9738340), (40, 7790672), (62, 5026240), (64, 4869170), (80, 3895336), (113, 2757760), (124, 2513120), (128, 2434585), (139, 2241920), (155, 2010496), (160, 1947668), (226, 1378880), (248, 1256560), (278, 1120960), (310, 1005248), (320, 973834), (452, 689440), (496, 628280), (556, 560480), (565, 551552), (620, 502624), (640, 486917), (695, 448384), (904, 344720), (992, 314140), (1112, 280240), (1130, 275776), (1240, 251312), (1390, 224192), (1808, 172360), (1984, 157070), (2224, 140120), (2260, 137888), (2480, 125656), (2780, 112096), (3503, 88960), (3616, 86180), (3968, 78535), (4309, 72320), (4448, 70060), (4520, 68944), (4960, 62828), (5560, 56048), (7006, 44480), (7232, 43090), (8618, 36160), (8896, 35030), (9040, 34472), (9920, 31414), (11120, 28024), (14012, 22240), (14464, 21545), (15707, 19840), (17236, 18080), (17515, 17792)]