23281840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:119

約数の個数: 120

約数和(自身を含む): 61670160

約数和(自身を除く): 38388320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 34, 38, 40, 53, 68, 76, 80, 85, 95, 106, 136, 152, 170, 190, 212, 265, 272, 289, 304, 323, 340, 380, 424, 530, 578, 646, 680, 760, 848, 901, 1007, 1060, 1156, 1292, 1360, 1445, 1520, 1615, 1802, 2014, 2120, 2312, 2584, 2890, 3230, 3604, 4028, 4240, 4505, 4624, 5035, 5168, 5491, 5780, 6460, 7208, 8056, 9010, 10070, 10982, 11560, 12920, 14416, 15317, 16112, 17119, 18020, 20140, 21964, 23120, 25840, 27455, 30634, 34238, 36040, 40280, 43928, 54910, 61268, 68476, 72080, 76585, 80560, 85595, 87856, 109820, 122536, 136952, 153170, 171190, 219640, 245072, 273904, 291023, 306340, 342380, 439280, 582046, 612680, 684760, 1164092, 1225360, 1369520, 1455115, 2328184, 2910230, 4656368, 5820460, 11640920, 23281840]

約数ペア:

[(1, 23281840), (2, 11640920), (4, 5820460), (5, 4656368), (8, 2910230), (10, 2328184), (16, 1455115), (17, 1369520), (19, 1225360), (20, 1164092), (34, 684760), (38, 612680), (40, 582046), (53, 439280), (68, 342380), (76, 306340), (80, 291023), (85, 273904), (95, 245072), (106, 219640), (136, 171190), (152, 153170), (170, 136952), (190, 122536), (212, 109820), (265, 87856), (272, 85595), (289, 80560), (304, 76585), (323, 72080), (340, 68476), (380, 61268), (424, 54910), (530, 43928), (578, 40280), (646, 36040), (680, 34238), (760, 30634), (848, 27455), (901, 25840), (1007, 23120), (1060, 21964), (1156, 20140), (1292, 18020), (1360, 17119), (1445, 16112), (1520, 15317), (1615, 14416), (1802, 12920), (2014, 11560), (2120, 10982), (2312, 10070), (2584, 9010), (2890, 8056), (3230, 7208), (3604, 6460), (4028, 5780), (4240, 5491), (4505, 5168), (4624, 5035)]