1018769920

素因数分解:

$2^9\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:578

約数の個数: 160

約数和(自身を含む): 2818569600

約数和(自身を除く): 1799799680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 139, 140, 160, 224, 256, 278, 280, 320, 409, 448, 512, 556, 560, 640, 695, 818, 896, 973, 1112, 1120, 1280, 1390, 1636, 1792, 1946, 2045, 2224, 2240, 2560, 2780, 2863, 3272, 3584, 3892, 4090, 4448, 4480, 4865, 5560, 5726, 6544, 7784, 8180, 8896, 8960, 9730, 11120, 11452, 13088, 14315, 15568, 16360, 17792, 17920, 19460, 22240, 22904, 26176, 28630, 31136, 32720, 35584, 38920, 44480, 45808, 52352, 56851, 57260, 62272, 65440, 71168, 77840, 88960, 91616, 104704, 113702, 114520, 124544, 130880, 155680, 177920, 183232, 209408, 227404, 229040, 249088, 261760, 284255, 311360, 355840, 366464, 397957, 454808, 458080, 498176, 523520, 568510, 622720, 732928, 795914, 909616, 916160, 1047040, 1137020, 1245440, 1465856, 1591828, 1819232, 1832320, 1989785, 2274040, 2490880, 3183656, 3638464, 3664640, 3979570, 4548080, 6367312, 7276928, 7329280, 7959140, 9096160, 12734624, 14553856, 15918280, 18192320, 25469248, 29107712, 31836560, 36384640, 50938496, 63673120, 72769280, 101876992, 127346240, 145538560, 203753984, 254692480, 509384960, 1018769920]

約数ペア:

[(1, 1018769920), (2, 509384960), (4, 254692480), (5, 203753984), (7, 145538560), (8, 127346240), (10, 101876992), (14, 72769280), (16, 63673120), (20, 50938496), (28, 36384640), (32, 31836560), (35, 29107712), (40, 25469248), (56, 18192320), (64, 15918280), (70, 14553856), (80, 12734624), (112, 9096160), (128, 7959140), (139, 7329280), (140, 7276928), (160, 6367312), (224, 4548080), (256, 3979570), (278, 3664640), (280, 3638464), (320, 3183656), (409, 2490880), (448, 2274040), (512, 1989785), (556, 1832320), (560, 1819232), (640, 1591828), (695, 1465856), (818, 1245440), (896, 1137020), (973, 1047040), (1112, 916160), (1120, 909616), (1280, 795914), (1390, 732928), (1636, 622720), (1792, 568510), (1946, 523520), (2045, 498176), (2224, 458080), (2240, 454808), (2560, 397957), (2780, 366464), (2863, 355840), (3272, 311360), (3584, 284255), (3892, 261760), (4090, 249088), (4448, 229040), (4480, 227404), (4865, 209408), (5560, 183232), (5726, 177920), (6544, 155680), (7784, 130880), (8180, 124544), (8896, 114520), (8960, 113702), (9730, 104704), (11120, 91616), (11452, 88960), (13088, 77840), (14315, 71168), (15568, 65440), (16360, 62272), (17792, 57260), (17920, 56851), (19460, 52352), (22240, 45808), (22904, 44480), (26176, 38920), (28630, 35584), (31136, 32720)]