20144986880

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1\times {\mathrm{1367}}^1$

素因数の和:1814

約数の個数: 144

約数和(自身を含む): 50079798720

約数和(自身を除く): 29934811840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 397, 464, 580, 640, 794, 928, 1160, 1280, 1367, 1588, 1856, 1985, 2320, 2734, 3176, 3712, 3970, 4640, 5468, 6352, 6835, 7424, 7940, 9280, 10936, 11513, 12704, 13670, 15880, 18560, 21872, 23026, 25408, 27340, 31760, 37120, 39643, 43744, 46052, 50816, 54680, 57565, 63520, 79286, 87488, 92104, 101632, 109360, 115130, 127040, 158572, 174976, 184208, 198215, 218720, 230260, 254080, 317144, 349952, 368416, 396430, 437440, 460520, 508160, 542699, 634288, 736832, 792860, 874880, 921040, 1085398, 1268576, 1473664, 1585720, 1749760, 1842080, 2170796, 2537152, 2713495, 2947328, 3171440, 3684160, 4341592, 5074304, 5426990, 6342880, 7368320, 8683184, 10148608, 10853980, 12685760, 14736640, 15738271, 17366368, 21707960, 25371520, 31476542, 34732736, 43415920, 50743040, 62953084, 69465472, 78691355, 86831840, 125906168, 138930944, 157382710, 173663680, 251812336, 314765420, 347327360, 503624672, 629530840, 694654720, 1007249344, 1259061680, 2014498688, 2518123360, 4028997376, 5036246720, 10072493440, 20144986880]

約数ペア:

[(1, 20144986880), (2, 10072493440), (4, 5036246720), (5, 4028997376), (8, 2518123360), (10, 2014498688), (16, 1259061680), (20, 1007249344), (29, 694654720), (32, 629530840), (40, 503624672), (58, 347327360), (64, 314765420), (80, 251812336), (116, 173663680), (128, 157382710), (145, 138930944), (160, 125906168), (232, 86831840), (256, 78691355), (290, 69465472), (320, 62953084), (397, 50743040), (464, 43415920), (580, 34732736), (640, 31476542), (794, 25371520), (928, 21707960), (1160, 17366368), (1280, 15738271), (1367, 14736640), (1588, 12685760), (1856, 10853980), (1985, 10148608), (2320, 8683184), (2734, 7368320), (3176, 6342880), (3712, 5426990), (3970, 5074304), (4640, 4341592), (5468, 3684160), (6352, 3171440), (6835, 2947328), (7424, 2713495), (7940, 2537152), (9280, 2170796), (10936, 1842080), (11513, 1749760), (12704, 1585720), (13670, 1473664), (15880, 1268576), (18560, 1085398), (21872, 921040), (23026, 874880), (25408, 792860), (27340, 736832), (31760, 634288), (37120, 542699), (39643, 508160), (43744, 460520), (46052, 437440), (50816, 396430), (54680, 368416), (57565, 349952), (63520, 317144), (79286, 254080), (87488, 230260), (92104, 218720), (101632, 198215), (109360, 184208), (115130, 174976), (127040, 158572)]