80074400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 144

約数和(自身を含む): 227485440

約数和(自身を除く): 147411040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 79, 80, 100, 112, 140, 158, 160, 175, 181, 200, 224, 280, 316, 350, 362, 395, 400, 553, 560, 632, 700, 724, 790, 800, 905, 1106, 1120, 1264, 1267, 1400, 1448, 1580, 1810, 1975, 2212, 2528, 2534, 2765, 2800, 2896, 3160, 3620, 3950, 4424, 4525, 5068, 5530, 5600, 5792, 6320, 6335, 7240, 7900, 8848, 9050, 10136, 11060, 12640, 12670, 13825, 14299, 14480, 15800, 17696, 18100, 20272, 22120, 25340, 27650, 28598, 28960, 31600, 31675, 36200, 40544, 44240, 50680, 55300, 57196, 63200, 63350, 71495, 72400, 88480, 100093, 101360, 110600, 114392, 126700, 142990, 144800, 200186, 202720, 221200, 228784, 253400, 285980, 357475, 400372, 442400, 457568, 500465, 506800, 571960, 714950, 800744, 1000930, 1013600, 1143920, 1429900, 1601488, 2001860, 2287840, 2502325, 2859800, 3202976, 4003720, 5004650, 5719600, 8007440, 10009300, 11439200, 16014880, 20018600, 40037200, 80074400]

約数ペア:

[(1, 80074400), (2, 40037200), (4, 20018600), (5, 16014880), (7, 11439200), (8, 10009300), (10, 8007440), (14, 5719600), (16, 5004650), (20, 4003720), (25, 3202976), (28, 2859800), (32, 2502325), (35, 2287840), (40, 2001860), (50, 1601488), (56, 1429900), (70, 1143920), (79, 1013600), (80, 1000930), (100, 800744), (112, 714950), (140, 571960), (158, 506800), (160, 500465), (175, 457568), (181, 442400), (200, 400372), (224, 357475), (280, 285980), (316, 253400), (350, 228784), (362, 221200), (395, 202720), (400, 200186), (553, 144800), (560, 142990), (632, 126700), (700, 114392), (724, 110600), (790, 101360), (800, 100093), (905, 88480), (1106, 72400), (1120, 71495), (1264, 63350), (1267, 63200), (1400, 57196), (1448, 55300), (1580, 50680), (1810, 44240), (1975, 40544), (2212, 36200), (2528, 31675), (2534, 31600), (2765, 28960), (2800, 28598), (2896, 27650), (3160, 25340), (3620, 22120), (3950, 20272), (4424, 18100), (4525, 17696), (5068, 15800), (5530, 14480), (5600, 14299), (5792, 13825), (6320, 12670), (6335, 12640), (7240, 11060), (7900, 10136), (8848, 9050)]