161680400

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 180

約数和(自身を含む): 462098772

約数和(自身を除く): 300418372

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 73, 80, 98, 100, 112, 113, 140, 146, 175, 196, 200, 226, 245, 280, 292, 350, 365, 392, 400, 452, 490, 511, 560, 565, 584, 700, 730, 784, 791, 904, 980, 1022, 1130, 1168, 1225, 1400, 1460, 1582, 1808, 1825, 1960, 2044, 2260, 2450, 2555, 2800, 2825, 2920, 3164, 3577, 3650, 3920, 3955, 4088, 4520, 4900, 5110, 5537, 5650, 5840, 6328, 7154, 7300, 7910, 8176, 8249, 9040, 9800, 10220, 11074, 11300, 12656, 12775, 14308, 14600, 15820, 16498, 17885, 19600, 19775, 20440, 22148, 22600, 25550, 27685, 28616, 29200, 31640, 32996, 35770, 39550, 40880, 41245, 44296, 45200, 51100, 55370, 57232, 57743, 63280, 65992, 71540, 79100, 82490, 88592, 89425, 102200, 110740, 115486, 131984, 138425, 143080, 158200, 164980, 178850, 204400, 206225, 221480, 230972, 276850, 286160, 288715, 316400, 329960, 357700, 404201, 412450, 442960, 461944, 553700, 577430, 659920, 715400, 808402, 824900, 923888, 1107400, 1154860, 1430800, 1443575, 1616804, 1649800, 2021005, 2214800, 2309720, 2887150, 3233608, 3299600, 4042010, 4619440, 5774300, 6467216, 8084020, 10105025, 11548600, 16168040, 20210050, 23097200, 32336080, 40420100, 80840200, 161680400]

約数ペア:

[(1, 161680400), (2, 80840200), (4, 40420100), (5, 32336080), (7, 23097200), (8, 20210050), (10, 16168040), (14, 11548600), (16, 10105025), (20, 8084020), (25, 6467216), (28, 5774300), (35, 4619440), (40, 4042010), (49, 3299600), (50, 3233608), (56, 2887150), (70, 2309720), (73, 2214800), (80, 2021005), (98, 1649800), (100, 1616804), (112, 1443575), (113, 1430800), (140, 1154860), (146, 1107400), (175, 923888), (196, 824900), (200, 808402), (226, 715400), (245, 659920), (280, 577430), (292, 553700), (350, 461944), (365, 442960), (392, 412450), (400, 404201), (452, 357700), (490, 329960), (511, 316400), (560, 288715), (565, 286160), (584, 276850), (700, 230972), (730, 221480), (784, 206225), (791, 204400), (904, 178850), (980, 164980), (1022, 158200), (1130, 143080), (1168, 138425), (1225, 131984), (1400, 115486), (1460, 110740), (1582, 102200), (1808, 89425), (1825, 88592), (1960, 82490), (2044, 79100), (2260, 71540), (2450, 65992), (2555, 63280), (2800, 57743), (2825, 57232), (2920, 55370), (3164, 51100), (3577, 45200), (3650, 44296), (3920, 41245), (3955, 40880), (4088, 39550), (4520, 35770), (4900, 32996), (5110, 31640), (5537, 29200), (5650, 28616), (5840, 27685), (6328, 25550), (7154, 22600), (7300, 22148), (7910, 20440), (8176, 19775), (8249, 19600), (9040, 17885), (9800, 16498), (10220, 15820), (11074, 14600), (11300, 14308), (12656, 12775)]