2018720440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{631}}^1\times {\mathrm{661}}^1$

素因数の和:1325

約数の個数: 96

約数和(自身を含む): 5008056480

約数和(自身を除く): 2989336040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 440, 484, 605, 631, 661, 968, 1210, 1262, 1322, 2420, 2524, 2644, 3155, 3305, 4840, 5048, 5288, 6310, 6610, 6941, 7271, 12620, 13220, 13882, 14542, 25240, 26440, 27764, 29084, 34705, 36355, 55528, 58168, 69410, 72710, 76351, 79981, 138820, 145420, 152702, 159962, 277640, 290840, 305404, 319924, 381755, 399905, 417091, 610808, 639848, 763510, 799810, 834182, 1527020, 1599620, 1668364, 2085455, 3054040, 3199240, 3336728, 4170910, 4588001, 8341820, 9176002, 16683640, 18352004, 22940005, 36704008, 45880010, 50468011, 91760020, 100936022, 183520040, 201872044, 252340055, 403744088, 504680110, 1009360220, 2018720440]

約数ペア:

[(1, 2018720440), (2, 1009360220), (4, 504680110), (5, 403744088), (8, 252340055), (10, 201872044), (11, 183520040), (20, 100936022), (22, 91760020), (40, 50468011), (44, 45880010), (55, 36704008), (88, 22940005), (110, 18352004), (121, 16683640), (220, 9176002), (242, 8341820), (440, 4588001), (484, 4170910), (605, 3336728), (631, 3199240), (661, 3054040), (968, 2085455), (1210, 1668364), (1262, 1599620), (1322, 1527020), (2420, 834182), (2524, 799810), (2644, 763510), (3155, 639848), (3305, 610808), (4840, 417091), (5048, 399905), (5288, 381755), (6310, 319924), (6610, 305404), (6941, 290840), (7271, 277640), (12620, 159962), (13220, 152702), (13882, 145420), (14542, 138820), (25240, 79981), (26440, 76351), (27764, 72710), (29084, 69410), (34705, 58168), (36355, 55528)]