20380960

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 31873760

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 59, 68, 80, 85, 118, 127, 136, 160, 170, 236, 254, 272, 295, 340, 472, 508, 544, 590, 635, 680, 944, 1003, 1016, 1180, 1270, 1360, 1888, 2006, 2032, 2159, 2360, 2540, 2720, 4012, 4064, 4318, 4720, 5015, 5080, 7493, 8024, 8636, 9440, 10030, 10160, 10795, 14986, 16048, 17272, 20060, 20320, 21590, 29972, 32096, 34544, 37465, 40120, 43180, 59944, 69088, 74930, 80240, 86360, 119888, 127381, 149860, 160480, 172720, 239776, 254762, 299720, 345440, 509524, 599440, 636905, 1019048, 1198880, 1273810, 2038096, 2547620, 4076192, 5095240, 10190480, 20380960]

約数ペア:

[(1, 20380960), (2, 10190480), (4, 5095240), (5, 4076192), (8, 2547620), (10, 2038096), (16, 1273810), (17, 1198880), (20, 1019048), (32, 636905), (34, 599440), (40, 509524), (59, 345440), (68, 299720), (80, 254762), (85, 239776), (118, 172720), (127, 160480), (136, 149860), (160, 127381), (170, 119888), (236, 86360), (254, 80240), (272, 74930), (295, 69088), (340, 59944), (472, 43180), (508, 40120), (544, 37465), (590, 34544), (635, 32096), (680, 29972), (944, 21590), (1003, 20320), (1016, 20060), (1180, 17272), (1270, 16048), (1360, 14986), (1888, 10795), (2006, 10160), (2032, 10030), (2159, 9440), (2360, 8636), (2540, 8024), (2720, 7493), (4012, 5080), (4064, 5015), (4318, 4720)]