64678400

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 120

約数和(自身を含む): 166429824

約数和(自身を除く): 101751424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 163, 200, 248, 256, 310, 320, 326, 400, 496, 512, 620, 640, 652, 775, 800, 815, 992, 1240, 1280, 1304, 1550, 1600, 1630, 1984, 2480, 2560, 2608, 3100, 3200, 3260, 3968, 4075, 4960, 5053, 5216, 6200, 6400, 6520, 7936, 8150, 9920, 10106, 10432, 12400, 12800, 13040, 15872, 16300, 19840, 20212, 20864, 24800, 25265, 26080, 32600, 39680, 40424, 41728, 49600, 50530, 52160, 65200, 79360, 80848, 83456, 99200, 101060, 104320, 126325, 130400, 161696, 198400, 202120, 208640, 252650, 260800, 323392, 396800, 404240, 417280, 505300, 521600, 646784, 808480, 1010600, 1043200, 1293568, 1616960, 2021200, 2086400, 2587136, 3233920, 4042400, 6467840, 8084800, 12935680, 16169600, 32339200, 64678400]

約数ペア:

[(1, 64678400), (2, 32339200), (4, 16169600), (5, 12935680), (8, 8084800), (10, 6467840), (16, 4042400), (20, 3233920), (25, 2587136), (31, 2086400), (32, 2021200), (40, 1616960), (50, 1293568), (62, 1043200), (64, 1010600), (80, 808480), (100, 646784), (124, 521600), (128, 505300), (155, 417280), (160, 404240), (163, 396800), (200, 323392), (248, 260800), (256, 252650), (310, 208640), (320, 202120), (326, 198400), (400, 161696), (496, 130400), (512, 126325), (620, 104320), (640, 101060), (652, 99200), (775, 83456), (800, 80848), (815, 79360), (992, 65200), (1240, 52160), (1280, 50530), (1304, 49600), (1550, 41728), (1600, 40424), (1630, 39680), (1984, 32600), (2480, 26080), (2560, 25265), (2608, 24800), (3100, 20864), (3200, 20212), (3260, 19840), (3968, 16300), (4075, 15872), (4960, 13040), (5053, 12800), (5216, 12400), (6200, 10432), (6400, 10106), (6520, 9920), (7936, 8150)]