391502720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2819}}^1$

素因数の和:2876

約数の個数: 128

約数和(自身を含む): 1104537600

約数和(自身を除く): 713034880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1984, 2170, 2240, 2480, 2819, 3472, 3968, 4340, 4480, 4960, 5638, 6944, 8680, 9920, 11276, 13888, 14095, 17360, 19733, 19840, 22552, 27776, 28190, 34720, 39466, 45104, 56380, 69440, 78932, 87389, 90208, 98665, 112760, 138880, 157864, 174778, 180416, 197330, 225520, 315728, 349556, 360832, 394660, 436945, 451040, 611723, 631456, 699112, 789320, 873890, 902080, 1223446, 1262912, 1398224, 1578640, 1747780, 1804160, 2446892, 2525824, 2796448, 3058615, 3157280, 3495560, 4893784, 5592896, 6117230, 6314560, 6991120, 9787568, 11185792, 12234460, 12629120, 13982240, 19575136, 24468920, 27964480, 39150272, 48937840, 55928960, 78300544, 97875680, 195751360, 391502720]

約数ペア:

[(1, 391502720), (2, 195751360), (4, 97875680), (5, 78300544), (7, 55928960), (8, 48937840), (10, 39150272), (14, 27964480), (16, 24468920), (20, 19575136), (28, 13982240), (31, 12629120), (32, 12234460), (35, 11185792), (40, 9787568), (56, 6991120), (62, 6314560), (64, 6117230), (70, 5592896), (80, 4893784), (112, 3495560), (124, 3157280), (128, 3058615), (140, 2796448), (155, 2525824), (160, 2446892), (217, 1804160), (224, 1747780), (248, 1578640), (280, 1398224), (310, 1262912), (320, 1223446), (434, 902080), (448, 873890), (496, 789320), (560, 699112), (620, 631456), (640, 611723), (868, 451040), (896, 436945), (992, 394660), (1085, 360832), (1120, 349556), (1240, 315728), (1736, 225520), (1984, 197330), (2170, 180416), (2240, 174778), (2480, 157864), (2819, 138880), (3472, 112760), (3968, 98665), (4340, 90208), (4480, 87389), (4960, 78932), (5638, 69440), (6944, 56380), (8680, 45104), (9920, 39466), (11276, 34720), (13888, 28190), (14095, 27776), (17360, 22552), (19733, 19840)]