17948840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4931}}^1$

素因数の和:4962

約数の個数: 64

約数和(自身を含む): 49714560

約数和(自身を除く): 31765720

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4931, 9862, 19724, 24655, 34517, 39448, 49310, 64103, 69034, 98620, 128206, 138068, 172585, 197240, 256412, 276136, 320515, 345170, 448721, 512824, 641030, 690340, 897442, 1282060, 1380680, 1794884, 2243605, 2564120, 3589768, 4487210, 8974420, 17948840]

約数ペア:

[(1, 17948840), (2, 8974420), (4, 4487210), (5, 3589768), (7, 2564120), (8, 2243605), (10, 1794884), (13, 1380680), (14, 1282060), (20, 897442), (26, 690340), (28, 641030), (35, 512824), (40, 448721), (52, 345170), (56, 320515), (65, 276136), (70, 256412), (91, 197240), (104, 172585), (130, 138068), (140, 128206), (182, 98620), (260, 69034), (280, 64103), (364, 49310), (455, 39448), (520, 34517), (728, 24655), (910, 19724), (1820, 9862), (3640, 4931)]