256285440

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{22247}}^1$

素因数の和:22274

約数の個数: 108

約数和(自身を含む): 886760784

約数和(自身を除く): 630475344

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1920, 2304, 2880, 3840, 5760, 11520, 22247, 44494, 66741, 88988, 111235, 133482, 177976, 200223, 222470, 266964, 333705, 355952, 400446, 444940, 533928, 667410, 711904, 800892, 889880, 1001115, 1067856, 1334820, 1423808, 1601784, 1779760, 2002230, 2135712, 2669640, 2847616, 3203568, 3559520, 4004460, 4271424, 5339280, 5695232, 6407136, 7119040, 8008920, 8542848, 10678560, 12814272, 14238080, 16017840, 17085696, 21357120, 25628544, 28476160, 32035680, 42714240, 51257088, 64071360, 85428480, 128142720, 256285440]

約数ペア:

[(1, 256285440), (2, 128142720), (3, 85428480), (4, 64071360), (5, 51257088), (6, 42714240), (8, 32035680), (9, 28476160), (10, 25628544), (12, 21357120), (15, 17085696), (16, 16017840), (18, 14238080), (20, 12814272), (24, 10678560), (30, 8542848), (32, 8008920), (36, 7119040), (40, 6407136), (45, 5695232), (48, 5339280), (60, 4271424), (64, 4004460), (72, 3559520), (80, 3203568), (90, 2847616), (96, 2669640), (120, 2135712), (128, 2002230), (144, 1779760), (160, 1601784), (180, 1423808), (192, 1334820), (240, 1067856), (256, 1001115), (288, 889880), (320, 800892), (360, 711904), (384, 667410), (480, 533928), (576, 444940), (640, 400446), (720, 355952), (768, 333705), (960, 266964), (1152, 222470), (1280, 200223), (1440, 177976), (1920, 133482), (2304, 111235), (2880, 88988), (3840, 66741), (5760, 44494), (11520, 22247)]