20197820920

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{127}}^1\times {\mathrm{47903}}^1$

素因数の和:48124

約数の個数: 64

約数和(自身を含む): 46355742720

約数和(自身を除く): 26157921800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 127, 166, 254, 332, 415, 508, 635, 664, 830, 1016, 1270, 1660, 2540, 3320, 5080, 10541, 21082, 42164, 47903, 52705, 84328, 95806, 105410, 191612, 210820, 239515, 383224, 421640, 479030, 958060, 1916120, 3975949, 6083681, 7951898, 12167362, 15903796, 19879745, 24334724, 30418405, 31807592, 39759490, 48669448, 60836810, 79518980, 121673620, 159037960, 243347240, 504945523, 1009891046, 2019782092, 2524727615, 4039564184, 5049455230, 10098910460, 20197820920]

約数ペア:

[(1, 20197820920), (2, 10098910460), (4, 5049455230), (5, 4039564184), (8, 2524727615), (10, 2019782092), (20, 1009891046), (40, 504945523), (83, 243347240), (127, 159037960), (166, 121673620), (254, 79518980), (332, 60836810), (415, 48669448), (508, 39759490), (635, 31807592), (664, 30418405), (830, 24334724), (1016, 19879745), (1270, 15903796), (1660, 12167362), (2540, 7951898), (3320, 6083681), (5080, 3975949), (10541, 1916120), (21082, 958060), (42164, 479030), (47903, 421640), (52705, 383224), (84328, 239515), (95806, 210820), (105410, 191612)]