2019275920

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{10141}}^1$

素因数の和:10304

約数の個数: 80

約数和(自身を含む): 4980127680

約数和(自身を除く): 2960851760

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 131, 152, 190, 262, 304, 380, 524, 655, 760, 1048, 1310, 1520, 2096, 2489, 2620, 4978, 5240, 9956, 10141, 10480, 12445, 19912, 20282, 24890, 39824, 40564, 49780, 50705, 81128, 99560, 101410, 162256, 192679, 199120, 202820, 385358, 405640, 770716, 811280, 963395, 1328471, 1541432, 1926790, 2656942, 3082864, 3853580, 5313884, 6642355, 7707160, 10627768, 13284710, 15414320, 21255536, 25240949, 26569420, 50481898, 53138840, 100963796, 106277680, 126204745, 201927592, 252409490, 403855184, 504818980, 1009637960, 2019275920]

約数ペア:

[(1, 2019275920), (2, 1009637960), (4, 504818980), (5, 403855184), (8, 252409490), (10, 201927592), (16, 126204745), (19, 106277680), (20, 100963796), (38, 53138840), (40, 50481898), (76, 26569420), (80, 25240949), (95, 21255536), (131, 15414320), (152, 13284710), (190, 10627768), (262, 7707160), (304, 6642355), (380, 5313884), (524, 3853580), (655, 3082864), (760, 2656942), (1048, 1926790), (1310, 1541432), (1520, 1328471), (2096, 963395), (2489, 811280), (2620, 770716), (4978, 405640), (5240, 385358), (9956, 202820), (10141, 199120), (10480, 192679), (12445, 162256), (19912, 101410), (20282, 99560), (24890, 81128), (39824, 50705), (40564, 49780)]