247921920

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{21521}}^1$

素因数の和:21548

約数の個数: 108

約数和(自身を含む): 857823876

約数和(自身を除く): 609901956

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, 21521, 43042, 64563, 86084, 107605, 129126, 172168, 193689, 215210, 258252, 322815, 344336, 387378, 430420, 516504, 645630, 688672, 774756, 860840, 968445, 1033008, 1291260, 1377344, 1549512, 1721680, 1936890, 2066016, 2582520, 2754688, 3099024, 3443360, 3873780, 4132032, 5165040, 5509376, 6198048, 6886720, 7747560, 8264064, 10330080, 12396096, 13773440, 15495120, 16528128, 20660160, 24792192, 27546880, 30990240, 41320320, 49584384, 61980480, 82640640, 123960960, 247921920]

約数ペア:

[(1, 247921920), (2, 123960960), (3, 82640640), (4, 61980480), (5, 49584384), (6, 41320320), (8, 30990240), (9, 27546880), (10, 24792192), (12, 20660160), (15, 16528128), (16, 15495120), (18, 13773440), (20, 12396096), (24, 10330080), (30, 8264064), (32, 7747560), (36, 6886720), (40, 6198048), (45, 5509376), (48, 5165040), (60, 4132032), (64, 3873780), (72, 3443360), (80, 3099024), (90, 2754688), (96, 2582520), (120, 2066016), (128, 1936890), (144, 1721680), (160, 1549512), (180, 1377344), (192, 1291260), (240, 1033008), (256, 968445), (288, 860840), (320, 774756), (360, 688672), (384, 645630), (480, 516504), (576, 430420), (640, 387378), (720, 344336), (768, 322815), (960, 258252), (1152, 215210), (1280, 193689), (1440, 172168), (1920, 129126), (2304, 107605), (2880, 86084), (3840, 64563), (5760, 43042), (11520, 21521)]