18138400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 52496640

約数和(自身を除く): 34358240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 41, 50, 56, 70, 79, 80, 82, 100, 112, 140, 158, 160, 164, 175, 200, 205, 224, 280, 287, 316, 328, 350, 395, 400, 410, 553, 560, 574, 632, 656, 700, 790, 800, 820, 1025, 1106, 1120, 1148, 1264, 1312, 1400, 1435, 1580, 1640, 1975, 2050, 2212, 2296, 2528, 2765, 2800, 2870, 3160, 3239, 3280, 3950, 4100, 4424, 4592, 5530, 5600, 5740, 6320, 6478, 6560, 7175, 7900, 8200, 8848, 9184, 11060, 11480, 12640, 12956, 13825, 14350, 15800, 16195, 16400, 17696, 22120, 22673, 22960, 25912, 27650, 28700, 31600, 32390, 32800, 44240, 45346, 45920, 51824, 55300, 57400, 63200, 64780, 80975, 88480, 90692, 103648, 110600, 113365, 114800, 129560, 161950, 181384, 221200, 226730, 229600, 259120, 323900, 362768, 442400, 453460, 518240, 566825, 647800, 725536, 906920, 1133650, 1295600, 1813840, 2267300, 2591200, 3627680, 4534600, 9069200, 18138400]

約数ペア:

[(1, 18138400), (2, 9069200), (4, 4534600), (5, 3627680), (7, 2591200), (8, 2267300), (10, 1813840), (14, 1295600), (16, 1133650), (20, 906920), (25, 725536), (28, 647800), (32, 566825), (35, 518240), (40, 453460), (41, 442400), (50, 362768), (56, 323900), (70, 259120), (79, 229600), (80, 226730), (82, 221200), (100, 181384), (112, 161950), (140, 129560), (158, 114800), (160, 113365), (164, 110600), (175, 103648), (200, 90692), (205, 88480), (224, 80975), (280, 64780), (287, 63200), (316, 57400), (328, 55300), (350, 51824), (395, 45920), (400, 45346), (410, 44240), (553, 32800), (560, 32390), (574, 31600), (632, 28700), (656, 27650), (700, 25912), (790, 22960), (800, 22673), (820, 22120), (1025, 17696), (1106, 16400), (1120, 16195), (1148, 15800), (1264, 14350), (1312, 13825), (1400, 12956), (1435, 12640), (1580, 11480), (1640, 11060), (1975, 9184), (2050, 8848), (2212, 8200), (2296, 7900), (2528, 7175), (2765, 6560), (2800, 6478), (2870, 6320), (3160, 5740), (3239, 5600), (3280, 5530), (3950, 4592), (4100, 4424)]