20184500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:178

約数の個数: 96

約数和(自身を含む): 51717120

約数和(自身を除く): 31532620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 73, 79, 100, 125, 140, 146, 158, 175, 250, 292, 316, 350, 365, 395, 500, 511, 553, 700, 730, 790, 875, 1022, 1106, 1460, 1580, 1750, 1825, 1975, 2044, 2212, 2555, 2765, 3500, 3650, 3950, 5110, 5530, 5767, 7300, 7900, 9125, 9875, 10220, 11060, 11534, 12775, 13825, 18250, 19750, 23068, 25550, 27650, 28835, 36500, 39500, 40369, 51100, 55300, 57670, 63875, 69125, 80738, 115340, 127750, 138250, 144175, 161476, 201845, 255500, 276500, 288350, 403690, 576700, 720875, 807380, 1009225, 1441750, 2018450, 2883500, 4036900, 5046125, 10092250, 20184500]

約数ペア:

[(1, 20184500), (2, 10092250), (4, 5046125), (5, 4036900), (7, 2883500), (10, 2018450), (14, 1441750), (20, 1009225), (25, 807380), (28, 720875), (35, 576700), (50, 403690), (70, 288350), (73, 276500), (79, 255500), (100, 201845), (125, 161476), (140, 144175), (146, 138250), (158, 127750), (175, 115340), (250, 80738), (292, 69125), (316, 63875), (350, 57670), (365, 55300), (395, 51100), (500, 40369), (511, 39500), (553, 36500), (700, 28835), (730, 27650), (790, 25550), (875, 23068), (1022, 19750), (1106, 18250), (1460, 13825), (1580, 12775), (1750, 11534), (1825, 11060), (1975, 10220), (2044, 9875), (2212, 9125), (2555, 7900), (2765, 7300), (3500, 5767), (3650, 5530), (3950, 5110)]