20641600

素因数分解:

$2^6\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:145

約数の個数: 168

約数和(自身を含む): 61732160

約数和(自身を除く): 41090560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 25, 28, 32, 35, 38, 40, 50, 56, 64, 70, 76, 80, 95, 97, 100, 112, 133, 140, 152, 160, 175, 190, 194, 200, 224, 266, 280, 304, 320, 350, 380, 388, 400, 448, 475, 485, 532, 560, 608, 665, 679, 700, 760, 776, 800, 950, 970, 1064, 1120, 1216, 1330, 1358, 1400, 1520, 1552, 1600, 1843, 1900, 1940, 2128, 2240, 2425, 2660, 2716, 2800, 3040, 3104, 3325, 3395, 3686, 3800, 3880, 4256, 4850, 5320, 5432, 5600, 6080, 6208, 6650, 6790, 7372, 7600, 7760, 8512, 9215, 9700, 10640, 10864, 11200, 12901, 13300, 13580, 14744, 15200, 15520, 16975, 18430, 19400, 21280, 21728, 25802, 26600, 27160, 29488, 30400, 31040, 33950, 36860, 38800, 42560, 43456, 46075, 51604, 53200, 54320, 58976, 64505, 67900, 73720, 77600, 92150, 103208, 106400, 108640, 117952, 129010, 135800, 147440, 155200, 184300, 206416, 212800, 217280, 258020, 271600, 294880, 322525, 368600, 412832, 516040, 543200, 589760, 645050, 737200, 825664, 1032080, 1086400, 1290100, 1474400, 2064160, 2580200, 2948800, 4128320, 5160400, 10320800, 20641600]

約数ペア:

[(1, 20641600), (2, 10320800), (4, 5160400), (5, 4128320), (7, 2948800), (8, 2580200), (10, 2064160), (14, 1474400), (16, 1290100), (19, 1086400), (20, 1032080), (25, 825664), (28, 737200), (32, 645050), (35, 589760), (38, 543200), (40, 516040), (50, 412832), (56, 368600), (64, 322525), (70, 294880), (76, 271600), (80, 258020), (95, 217280), (97, 212800), (100, 206416), (112, 184300), (133, 155200), (140, 147440), (152, 135800), (160, 129010), (175, 117952), (190, 108640), (194, 106400), (200, 103208), (224, 92150), (266, 77600), (280, 73720), (304, 67900), (320, 64505), (350, 58976), (380, 54320), (388, 53200), (400, 51604), (448, 46075), (475, 43456), (485, 42560), (532, 38800), (560, 36860), (608, 33950), (665, 31040), (679, 30400), (700, 29488), (760, 27160), (776, 26600), (800, 25802), (950, 21728), (970, 21280), (1064, 19400), (1120, 18430), (1216, 16975), (1330, 15520), (1358, 15200), (1400, 14744), (1520, 13580), (1552, 13300), (1600, 12901), (1843, 11200), (1900, 10864), (1940, 10640), (2128, 9700), (2240, 9215), (2425, 8512), (2660, 7760), (2716, 7600), (2800, 7372), (3040, 6790), (3104, 6650), (3325, 6208), (3395, 6080), (3686, 5600), (3800, 5432), (3880, 5320), (4256, 4850)]