281906560

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1093}}^1$

素因数の和:1156

約数の個数: 128

約数和(自身を含む): 749871360

約数和(自身を除く): 467964800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1093, 1240, 1612, 1664, 1984, 2015, 2080, 2186, 2480, 3224, 3968, 4030, 4160, 4372, 4960, 5465, 6448, 8060, 8320, 8744, 9920, 10930, 12896, 14209, 16120, 17488, 19840, 21860, 25792, 28418, 32240, 33883, 34976, 43720, 51584, 56836, 64480, 67766, 69952, 71045, 87440, 113672, 128960, 135532, 139904, 142090, 169415, 174880, 227344, 257920, 271064, 284180, 338830, 349760, 440479, 454688, 542128, 568360, 677660, 699520, 880958, 909376, 1084256, 1136720, 1355320, 1761916, 1818752, 2168512, 2202395, 2273440, 2710640, 3523832, 4337024, 4404790, 4546880, 5421280, 7047664, 8809580, 9093760, 10842560, 14095328, 17619160, 21685120, 28190656, 35238320, 56381312, 70476640, 140953280, 281906560]

約数ペア:

[(1, 281906560), (2, 140953280), (4, 70476640), (5, 56381312), (8, 35238320), (10, 28190656), (13, 21685120), (16, 17619160), (20, 14095328), (26, 10842560), (31, 9093760), (32, 8809580), (40, 7047664), (52, 5421280), (62, 4546880), (64, 4404790), (65, 4337024), (80, 3523832), (104, 2710640), (124, 2273440), (128, 2202395), (130, 2168512), (155, 1818752), (160, 1761916), (208, 1355320), (248, 1136720), (260, 1084256), (310, 909376), (320, 880958), (403, 699520), (416, 677660), (496, 568360), (520, 542128), (620, 454688), (640, 440479), (806, 349760), (832, 338830), (992, 284180), (1040, 271064), (1093, 257920), (1240, 227344), (1612, 174880), (1664, 169415), (1984, 142090), (2015, 139904), (2080, 135532), (2186, 128960), (2480, 113672), (3224, 87440), (3968, 71045), (4030, 69952), (4160, 67766), (4372, 64480), (4960, 56836), (5465, 51584), (6448, 43720), (8060, 34976), (8320, 33883), (8744, 32240), (9920, 28418), (10930, 25792), (12896, 21860), (14209, 19840), (16120, 17488)]