31978326

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{317}}^1$

素因数の和:405

約数の個数: 64

約数和(自身を含む): 72534528

約数和(自身を除く): 40556202

約数列:

[1, 2, 3, 6, 17, 23, 34, 43, 46, 51, 69, 86, 102, 129, 138, 258, 317, 391, 634, 731, 782, 951, 989, 1173, 1462, 1902, 1978, 2193, 2346, 2967, 4386, 5389, 5934, 7291, 10778, 13631, 14582, 16167, 16813, 21873, 27262, 32334, 33626, 40893, 43746, 50439, 81786, 100878, 123947, 231727, 247894, 313513, 371841, 463454, 627026, 695181, 743682, 940539, 1390362, 1881078, 5329721, 10659442, 15989163, 31978326]

約数ペア:

[(1, 31978326), (2, 15989163), (3, 10659442), (6, 5329721), (17, 1881078), (23, 1390362), (34, 940539), (43, 743682), (46, 695181), (51, 627026), (69, 463454), (86, 371841), (102, 313513), (129, 247894), (138, 231727), (258, 123947), (317, 100878), (391, 81786), (634, 50439), (731, 43746), (782, 40893), (951, 33626), (989, 32334), (1173, 27262), (1462, 21873), (1902, 16813), (1978, 16167), (2193, 14582), (2346, 13631), (2967, 10778), (4386, 7291), (5389, 5934)]