25157120

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{317}}^1$

素因数の和:371

約数の個数: 80

約数和(自身を含む): 62460288

約数和(自身を除く): 37303168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 317, 320, 496, 512, 620, 634, 640, 992, 1240, 1268, 1280, 1585, 1984, 2480, 2536, 2560, 3170, 3968, 4960, 5072, 6340, 7936, 9827, 9920, 10144, 12680, 15872, 19654, 19840, 20288, 25360, 39308, 39680, 40576, 49135, 50720, 78616, 79360, 81152, 98270, 101440, 157232, 162304, 196540, 202880, 314464, 393080, 405760, 628928, 786160, 811520, 1257856, 1572320, 2515712, 3144640, 5031424, 6289280, 12578560, 25157120]

約数ペア:

[(1, 25157120), (2, 12578560), (4, 6289280), (5, 5031424), (8, 3144640), (10, 2515712), (16, 1572320), (20, 1257856), (31, 811520), (32, 786160), (40, 628928), (62, 405760), (64, 393080), (80, 314464), (124, 202880), (128, 196540), (155, 162304), (160, 157232), (248, 101440), (256, 98270), (310, 81152), (317, 79360), (320, 78616), (496, 50720), (512, 49135), (620, 40576), (634, 39680), (640, 39308), (992, 25360), (1240, 20288), (1268, 19840), (1280, 19654), (1585, 15872), (1984, 12680), (2480, 10144), (2536, 9920), (2560, 9827), (3170, 7936), (3968, 6340), (4960, 5072)]