17940804516

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{77783}}^1$

素因数の和:77985

約数の個数: 72

約数和(自身を含む): 46717070400

約数和(自身を除く): 28776265884

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 149, 172, 258, 298, 387, 447, 516, 596, 774, 894, 1341, 1548, 1788, 2682, 5364, 6407, 12814, 19221, 25628, 38442, 57663, 76884, 77783, 115326, 155566, 230652, 233349, 311132, 466698, 700047, 933396, 1400094, 2800188, 3344669, 6689338, 10034007, 11589667, 13378676, 20068014, 23179334, 30102021, 34769001, 40136028, 46358668, 60204042, 69538002, 104307003, 120408084, 139076004, 208614006, 417228012, 498355681, 996711362, 1495067043, 1993422724, 2990134086, 4485201129, 5980268172, 8970402258, 17940804516]

約数ペア:

[(1, 17940804516), (2, 8970402258), (3, 5980268172), (4, 4485201129), (6, 2990134086), (9, 1993422724), (12, 1495067043), (18, 996711362), (36, 498355681), (43, 417228012), (86, 208614006), (129, 139076004), (149, 120408084), (172, 104307003), (258, 69538002), (298, 60204042), (387, 46358668), (447, 40136028), (516, 34769001), (596, 30102021), (774, 23179334), (894, 20068014), (1341, 13378676), (1548, 11589667), (1788, 10034007), (2682, 6689338), (5364, 3344669), (6407, 2800188), (12814, 1400094), (19221, 933396), (25628, 700047), (38442, 466698), (57663, 311132), (76884, 233349), (77783, 230652), (115326, 155566)]