338591920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{439}}^1$

素因数の和:794

約数の個数: 80

約数和(自身を含む): 817090560

約数和(自身を除く): 478498640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 311, 439, 496, 620, 622, 878, 1240, 1244, 1555, 1756, 2195, 2480, 2488, 3110, 3512, 4390, 4976, 6220, 7024, 8780, 9641, 12440, 13609, 17560, 19282, 24880, 27218, 35120, 38564, 48205, 54436, 68045, 77128, 96410, 108872, 136090, 136529, 154256, 192820, 217744, 272180, 273058, 385640, 544360, 546116, 682645, 771280, 1088720, 1092232, 1365290, 2184464, 2730580, 4232399, 5461160, 8464798, 10922320, 16929596, 21161995, 33859192, 42323990, 67718384, 84647980, 169295960, 338591920]

約数ペア:

[(1, 338591920), (2, 169295960), (4, 84647980), (5, 67718384), (8, 42323990), (10, 33859192), (16, 21161995), (20, 16929596), (31, 10922320), (40, 8464798), (62, 5461160), (80, 4232399), (124, 2730580), (155, 2184464), (248, 1365290), (310, 1092232), (311, 1088720), (439, 771280), (496, 682645), (620, 546116), (622, 544360), (878, 385640), (1240, 273058), (1244, 272180), (1555, 217744), (1756, 192820), (2195, 154256), (2480, 136529), (2488, 136090), (3110, 108872), (3512, 96410), (4390, 77128), (4976, 68045), (6220, 54436), (7024, 48205), (8780, 38564), (9641, 35120), (12440, 27218), (13609, 24880), (17560, 19282)]