20374976

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:397

約数の個数: 56

約数和(自身を含む): 43653456

約数和(自身を除く): 23278480

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 61, 64, 68, 122, 136, 244, 272, 307, 488, 544, 614, 976, 1037, 1088, 1228, 1952, 2074, 2456, 3904, 4148, 4912, 5219, 8296, 9824, 10438, 16592, 18727, 19648, 20876, 33184, 37454, 41752, 66368, 74908, 83504, 149816, 167008, 299632, 318359, 334016, 599264, 636718, 1198528, 1273436, 2546872, 5093744, 10187488, 20374976]

約数ペア:

[(1, 20374976), (2, 10187488), (4, 5093744), (8, 2546872), (16, 1273436), (17, 1198528), (32, 636718), (34, 599264), (61, 334016), (64, 318359), (68, 299632), (122, 167008), (136, 149816), (244, 83504), (272, 74908), (307, 66368), (488, 41752), (544, 37454), (614, 33184), (976, 20876), (1037, 19648), (1088, 18727), (1228, 16592), (1952, 10438), (2074, 9824), (2456, 8296), (3904, 5219), (4148, 4912)]