668240960

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1$

素因数の和:173

約数の個数: 168

約数和(自身を含む): 1716118488

約数和(自身を除く): 1047877528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 53, 62, 64, 80, 82, 106, 124, 155, 160, 164, 205, 212, 248, 265, 310, 320, 328, 410, 424, 496, 530, 620, 656, 820, 848, 961, 992, 1060, 1240, 1271, 1312, 1640, 1643, 1696, 1922, 1984, 2120, 2173, 2480, 2542, 2624, 3280, 3286, 3392, 3844, 4240, 4346, 4805, 4960, 5084, 6355, 6560, 6572, 7688, 8215, 8480, 8692, 9610, 9920, 10168, 10865, 12710, 13120, 13144, 15376, 16430, 16960, 17384, 19220, 20336, 21730, 25420, 26288, 30752, 32860, 34768, 38440, 39401, 40672, 43460, 50840, 50933, 52576, 61504, 65720, 67363, 69536, 76880, 78802, 81344, 86920, 101680, 101866, 105152, 131440, 134726, 139072, 153760, 157604, 173840, 197005, 203360, 203732, 254665, 262880, 269452, 307520, 315208, 336815, 347680, 394010, 406720, 407464, 509330, 525760, 538904, 630416, 673630, 695360, 788020, 814928, 1018660, 1077808, 1260832, 1347260, 1576040, 1629856, 2037320, 2088253, 2155616, 2521664, 2694520, 3152080, 3259712, 4074640, 4176506, 4311232, 5389040, 6304160, 8149280, 8353012, 10441265, 10778080, 12608320, 16298560, 16706024, 20882530, 21556160, 33412048, 41765060, 66824096, 83530120, 133648192, 167060240, 334120480, 668240960]

約数ペア:

[(1, 668240960), (2, 334120480), (4, 167060240), (5, 133648192), (8, 83530120), (10, 66824096), (16, 41765060), (20, 33412048), (31, 21556160), (32, 20882530), (40, 16706024), (41, 16298560), (53, 12608320), (62, 10778080), (64, 10441265), (80, 8353012), (82, 8149280), (106, 6304160), (124, 5389040), (155, 4311232), (160, 4176506), (164, 4074640), (205, 3259712), (212, 3152080), (248, 2694520), (265, 2521664), (310, 2155616), (320, 2088253), (328, 2037320), (410, 1629856), (424, 1576040), (496, 1347260), (530, 1260832), (620, 1077808), (656, 1018660), (820, 814928), (848, 788020), (961, 695360), (992, 673630), (1060, 630416), (1240, 538904), (1271, 525760), (1312, 509330), (1640, 407464), (1643, 406720), (1696, 394010), (1922, 347680), (1984, 336815), (2120, 315208), (2173, 307520), (2480, 269452), (2542, 262880), (2624, 254665), (3280, 203732), (3286, 203360), (3392, 197005), (3844, 173840), (4240, 157604), (4346, 153760), (4805, 139072), (4960, 134726), (5084, 131440), (6355, 105152), (6560, 101866), (6572, 101680), (7688, 86920), (8215, 81344), (8480, 78802), (8692, 76880), (9610, 69536), (9920, 67363), (10168, 65720), (10865, 61504), (12710, 52576), (13120, 50933), (13144, 50840), (15376, 43460), (16430, 40672), (16960, 39401), (17384, 38440), (19220, 34768), (20336, 32860), (21730, 30752), (25420, 26288)]