1021018880

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{223}}^1$

素因数の和:331

約数の個数: 216

約数和(自身を含む): 2896854912

約数和(自身を除く): 1875836032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 73, 80, 98, 112, 128, 140, 146, 160, 196, 223, 224, 245, 256, 280, 292, 320, 365, 392, 446, 448, 490, 511, 560, 584, 640, 730, 784, 892, 896, 980, 1022, 1115, 1120, 1168, 1280, 1460, 1561, 1568, 1784, 1792, 1960, 2044, 2230, 2240, 2336, 2555, 2920, 3122, 3136, 3568, 3577, 3920, 4088, 4460, 4480, 4672, 5110, 5840, 6244, 6272, 7136, 7154, 7805, 7840, 8176, 8920, 8960, 9344, 10220, 10927, 11680, 12488, 12544, 14272, 14308, 15610, 15680, 16279, 16352, 17840, 17885, 18688, 20440, 21854, 23360, 24976, 28544, 28616, 31220, 31360, 32558, 32704, 35680, 35770, 40880, 43708, 46720, 49952, 54635, 57088, 57232, 62440, 62720, 65116, 65408, 71360, 71540, 81395, 81760, 87416, 93440, 99904, 109270, 113953, 114464, 124880, 130232, 130816, 142720, 143080, 162790, 163520, 174832, 199808, 218540, 227906, 228928, 249760, 260464, 285440, 286160, 325580, 327040, 349664, 399616, 437080, 455812, 457856, 499520, 520928, 569765, 572320, 651160, 654080, 699328, 797671, 874160, 911624, 915712, 999040, 1041856, 1139530, 1144640, 1302320, 1398656, 1595342, 1748320, 1823248, 1998080, 2083712, 2279060, 2289280, 2604640, 2797312, 3190684, 3496640, 3646496, 3988355, 4167424, 4558120, 4578560, 5209280, 6381368, 6993280, 7292992, 7976710, 9116240, 10418560, 12762736, 13986560, 14585984, 15953420, 18232480, 20837120, 25525472, 29171968, 31906840, 36464960, 51050944, 63813680, 72929920, 102101888, 127627360, 145859840, 204203776, 255254720, 510509440, 1021018880]

約数ペア:

[(1, 1021018880), (2, 510509440), (4, 255254720), (5, 204203776), (7, 145859840), (8, 127627360), (10, 102101888), (14, 72929920), (16, 63813680), (20, 51050944), (28, 36464960), (32, 31906840), (35, 29171968), (40, 25525472), (49, 20837120), (56, 18232480), (64, 15953420), (70, 14585984), (73, 13986560), (80, 12762736), (98, 10418560), (112, 9116240), (128, 7976710), (140, 7292992), (146, 6993280), (160, 6381368), (196, 5209280), (223, 4578560), (224, 4558120), (245, 4167424), (256, 3988355), (280, 3646496), (292, 3496640), (320, 3190684), (365, 2797312), (392, 2604640), (446, 2289280), (448, 2279060), (490, 2083712), (511, 1998080), (560, 1823248), (584, 1748320), (640, 1595342), (730, 1398656), (784, 1302320), (892, 1144640), (896, 1139530), (980, 1041856), (1022, 999040), (1115, 915712), (1120, 911624), (1168, 874160), (1280, 797671), (1460, 699328), (1561, 654080), (1568, 651160), (1784, 572320), (1792, 569765), (1960, 520928), (2044, 499520), (2230, 457856), (2240, 455812), (2336, 437080), (2555, 399616), (2920, 349664), (3122, 327040), (3136, 325580), (3568, 286160), (3577, 285440), (3920, 260464), (4088, 249760), (4460, 228928), (4480, 227906), (4672, 218540), (5110, 199808), (5840, 174832), (6244, 163520), (6272, 162790), (7136, 143080), (7154, 142720), (7805, 130816), (7840, 130232), (8176, 124880), (8920, 114464), (8960, 113953), (9344, 109270), (10220, 99904), (10927, 93440), (11680, 87416), (12488, 81760), (12544, 81395), (14272, 71540), (14308, 71360), (15610, 65408), (15680, 65116), (16279, 62720), (16352, 62440), (17840, 57232), (17885, 57088), (18688, 54635), (20440, 49952), (21854, 46720), (23360, 43708), (24976, 40880), (28544, 35770), (28616, 35680), (31220, 32704), (31360, 32558)]