17887480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:904

約数の個数: 64

約数和(自身を含む): 44452800

約数和(自身を除く): 26565320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 41, 52, 65, 82, 104, 130, 164, 205, 260, 328, 410, 520, 533, 820, 839, 1066, 1640, 1678, 2132, 2665, 3356, 4195, 4264, 5330, 6712, 8390, 10660, 10907, 16780, 21320, 21814, 33560, 34399, 43628, 54535, 68798, 87256, 109070, 137596, 171995, 218140, 275192, 343990, 436280, 447187, 687980, 894374, 1375960, 1788748, 2235935, 3577496, 4471870, 8943740, 17887480]

約数ペア:

[(1, 17887480), (2, 8943740), (4, 4471870), (5, 3577496), (8, 2235935), (10, 1788748), (13, 1375960), (20, 894374), (26, 687980), (40, 447187), (41, 436280), (52, 343990), (65, 275192), (82, 218140), (104, 171995), (130, 137596), (164, 109070), (205, 87256), (260, 68798), (328, 54535), (410, 43628), (520, 34399), (533, 33560), (820, 21814), (839, 21320), (1066, 16780), (1640, 10907), (1678, 10660), (2132, 8390), (2665, 6712), (3356, 5330), (4195, 4264)]