89987800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:258

約数の個数: 192

約数和(自身を含む): 267840000

約数和(自身を除く): 177852200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 25, 28, 34, 35, 38, 40, 50, 56, 68, 70, 76, 85, 95, 100, 119, 133, 136, 140, 152, 170, 175, 190, 199, 200, 238, 266, 280, 323, 340, 350, 380, 398, 425, 475, 476, 532, 595, 646, 665, 680, 700, 760, 796, 850, 950, 952, 995, 1064, 1190, 1292, 1330, 1393, 1400, 1592, 1615, 1700, 1900, 1990, 2261, 2380, 2584, 2660, 2786, 2975, 3230, 3325, 3383, 3400, 3781, 3800, 3980, 4522, 4760, 4975, 5320, 5572, 5950, 6460, 6650, 6766, 6965, 7562, 7960, 8075, 9044, 9950, 11144, 11305, 11900, 12920, 13300, 13532, 13930, 15124, 16150, 16915, 18088, 18905, 19900, 22610, 23681, 23800, 26467, 26600, 27064, 27860, 30248, 32300, 33830, 34825, 37810, 39800, 45220, 47362, 52934, 55720, 56525, 64277, 64600, 67660, 69650, 75620, 84575, 90440, 94525, 94724, 105868, 113050, 118405, 128554, 132335, 135320, 139300, 151240, 169150, 189050, 189448, 211736, 226100, 236810, 257108, 264670, 278600, 321385, 338300, 378100, 449939, 452200, 473620, 514216, 529340, 592025, 642770, 661675, 676600, 756200, 899878, 947240, 1058680, 1184050, 1285540, 1323350, 1606925, 1799756, 2249695, 2368100, 2571080, 2646700, 3213850, 3599512, 4499390, 4736200, 5293400, 6427700, 8998780, 11248475, 12855400, 17997560, 22496950, 44993900, 89987800]

約数ペア:

[(1, 89987800), (2, 44993900), (4, 22496950), (5, 17997560), (7, 12855400), (8, 11248475), (10, 8998780), (14, 6427700), (17, 5293400), (19, 4736200), (20, 4499390), (25, 3599512), (28, 3213850), (34, 2646700), (35, 2571080), (38, 2368100), (40, 2249695), (50, 1799756), (56, 1606925), (68, 1323350), (70, 1285540), (76, 1184050), (85, 1058680), (95, 947240), (100, 899878), (119, 756200), (133, 676600), (136, 661675), (140, 642770), (152, 592025), (170, 529340), (175, 514216), (190, 473620), (199, 452200), (200, 449939), (238, 378100), (266, 338300), (280, 321385), (323, 278600), (340, 264670), (350, 257108), (380, 236810), (398, 226100), (425, 211736), (475, 189448), (476, 189050), (532, 169150), (595, 151240), (646, 139300), (665, 135320), (680, 132335), (700, 128554), (760, 118405), (796, 113050), (850, 105868), (950, 94724), (952, 94525), (995, 90440), (1064, 84575), (1190, 75620), (1292, 69650), (1330, 67660), (1393, 64600), (1400, 64277), (1592, 56525), (1615, 55720), (1700, 52934), (1900, 47362), (1990, 45220), (2261, 39800), (2380, 37810), (2584, 34825), (2660, 33830), (2786, 32300), (2975, 30248), (3230, 27860), (3325, 27064), (3383, 26600), (3400, 26467), (3781, 23800), (3800, 23681), (3980, 22610), (4522, 19900), (4760, 18905), (4975, 18088), (5320, 16915), (5572, 16150), (5950, 15124), (6460, 13930), (6650, 13532), (6766, 13300), (6965, 12920), (7562, 11900), (7960, 11305), (8075, 11144), (9044, 9950)]