82480720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:477

約数の個数: 120

約数和(自身を含む): 227858184

約数和(自身を除く): 145377464

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 53, 56, 70, 80, 98, 106, 112, 140, 196, 212, 245, 265, 280, 371, 392, 397, 424, 490, 530, 560, 742, 784, 794, 848, 980, 1060, 1484, 1588, 1855, 1960, 1985, 2120, 2597, 2779, 2968, 3176, 3710, 3920, 3970, 4240, 5194, 5558, 5936, 6352, 7420, 7940, 10388, 11116, 12985, 13895, 14840, 15880, 19453, 20776, 21041, 22232, 25970, 27790, 29680, 31760, 38906, 41552, 42082, 44464, 51940, 55580, 77812, 84164, 97265, 103880, 105205, 111160, 147287, 155624, 168328, 194530, 207760, 210410, 222320, 294574, 311248, 336656, 389060, 420820, 589148, 736435, 778120, 841640, 1031009, 1178296, 1472870, 1556240, 1683280, 2062018, 2356592, 2945740, 4124036, 5155045, 5891480, 8248072, 10310090, 11782960, 16496144, 20620180, 41240360, 82480720]

約数ペア:

[(1, 82480720), (2, 41240360), (4, 20620180), (5, 16496144), (7, 11782960), (8, 10310090), (10, 8248072), (14, 5891480), (16, 5155045), (20, 4124036), (28, 2945740), (35, 2356592), (40, 2062018), (49, 1683280), (53, 1556240), (56, 1472870), (70, 1178296), (80, 1031009), (98, 841640), (106, 778120), (112, 736435), (140, 589148), (196, 420820), (212, 389060), (245, 336656), (265, 311248), (280, 294574), (371, 222320), (392, 210410), (397, 207760), (424, 194530), (490, 168328), (530, 155624), (560, 147287), (742, 111160), (784, 105205), (794, 103880), (848, 97265), (980, 84164), (1060, 77812), (1484, 55580), (1588, 51940), (1855, 44464), (1960, 42082), (1985, 41552), (2120, 38906), (2597, 31760), (2779, 29680), (2968, 27790), (3176, 25970), (3710, 22232), (3920, 21041), (3970, 20776), (4240, 19453), (5194, 15880), (5558, 14840), (5936, 13895), (6352, 12985), (7420, 11116), (7940, 10388)]