20123486604

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{237563}}^1$

素因数の和:237767

約数の個数: 72

約数和(自身を含む): 55083489552

約数和(自身を除く): 34960002948

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 181, 234, 362, 468, 543, 724, 1086, 1629, 2172, 2353, 3258, 4706, 6516, 7059, 9412, 14118, 21177, 28236, 42354, 84708, 237563, 475126, 712689, 950252, 1425378, 2138067, 2850756, 3088319, 4276134, 6176638, 8552268, 9264957, 12353276, 18529914, 27794871, 37059828, 42998903, 55589742, 85997806, 111179484, 128996709, 171995612, 257993418, 386990127, 515986836, 558985739, 773980254, 1117971478, 1547960508, 1676957217, 2235942956, 3353914434, 5030871651, 6707828868, 10061743302, 20123486604]

約数ペア:

[(1, 20123486604), (2, 10061743302), (3, 6707828868), (4, 5030871651), (6, 3353914434), (9, 2235942956), (12, 1676957217), (13, 1547960508), (18, 1117971478), (26, 773980254), (36, 558985739), (39, 515986836), (52, 386990127), (78, 257993418), (117, 171995612), (156, 128996709), (181, 111179484), (234, 85997806), (362, 55589742), (468, 42998903), (543, 37059828), (724, 27794871), (1086, 18529914), (1629, 12353276), (2172, 9264957), (2353, 8552268), (3258, 6176638), (4706, 4276134), (6516, 3088319), (7059, 2850756), (9412, 2138067), (14118, 1425378), (21177, 950252), (28236, 712689), (42354, 475126), (84708, 237563)]