20994973440

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{781063}}^1$

素因数の和:781094

約数の個数: 144

約数和(自身を含む): 76631751168

約数和(自身を除く): 55636777728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1680, 1792, 1920, 2240, 2688, 3360, 3840, 4480, 5376, 6720, 8960, 13440, 26880, 781063, 1562126, 2343189, 3124252, 3905315, 4686378, 5467441, 6248504, 7810630, 9372756, 10934882, 11715945, 12497008, 15621260, 16402323, 18745512, 21869764, 23431890, 24994016, 27337205, 31242520, 32804646, 37491024, 43739528, 46863780, 49988032, 54674410, 62485040, 65609292, 74982048, 82011615, 87479056, 93727560, 99976064, 109348820, 124970080, 131218584, 149964096, 164023230, 174958112, 187455120, 199952128, 218697640, 249940160, 262437168, 299928192, 328046460, 349916224, 374910240, 437395280, 499880320, 524874336, 599856384, 656092920, 699832448, 749820480, 874790560, 999760640, 1049748672, 1312185840, 1399664896, 1499640960, 1749581120, 2099497344, 2624371680, 2999281920, 3499162240, 4198994688, 5248743360, 6998324480, 10497486720, 20994973440]

約数ペア:

[(1, 20994973440), (2, 10497486720), (3, 6998324480), (4, 5248743360), (5, 4198994688), (6, 3499162240), (7, 2999281920), (8, 2624371680), (10, 2099497344), (12, 1749581120), (14, 1499640960), (15, 1399664896), (16, 1312185840), (20, 1049748672), (21, 999760640), (24, 874790560), (28, 749820480), (30, 699832448), (32, 656092920), (35, 599856384), (40, 524874336), (42, 499880320), (48, 437395280), (56, 374910240), (60, 349916224), (64, 328046460), (70, 299928192), (80, 262437168), (84, 249940160), (96, 218697640), (105, 199952128), (112, 187455120), (120, 174958112), (128, 164023230), (140, 149964096), (160, 131218584), (168, 124970080), (192, 109348820), (210, 99976064), (224, 93727560), (240, 87479056), (256, 82011615), (280, 74982048), (320, 65609292), (336, 62485040), (384, 54674410), (420, 49988032), (448, 46863780), (480, 43739528), (560, 37491024), (640, 32804646), (672, 31242520), (768, 27337205), (840, 24994016), (896, 23431890), (960, 21869764), (1120, 18745512), (1280, 16402323), (1344, 15621260), (1680, 12497008), (1792, 11715945), (1920, 10934882), (2240, 9372756), (2688, 7810630), (3360, 6248504), (3840, 5467441), (4480, 4686378), (5376, 3905315), (6720, 3124252), (8960, 2343189), (13440, 1562126), (26880, 781063)]