320780020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{367}}^1$

素因数の和:553

約数の個数: 96

約数和(自身を含む): 767854080

約数和(自身を除く): 447074060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 29, 44, 55, 58, 110, 116, 137, 145, 220, 274, 290, 319, 367, 548, 580, 638, 685, 734, 1276, 1370, 1468, 1507, 1595, 1835, 2740, 3014, 3190, 3670, 3973, 4037, 6028, 6380, 7340, 7535, 7946, 8074, 10643, 15070, 15892, 16148, 19865, 20185, 21286, 30140, 39730, 40370, 42572, 43703, 50279, 53215, 79460, 80740, 87406, 100558, 106430, 117073, 174812, 201116, 212860, 218515, 234146, 251395, 437030, 468292, 502790, 553069, 585365, 874060, 1005580, 1106138, 1170730, 1458091, 2212276, 2341460, 2765345, 2916182, 5530690, 5832364, 7290455, 11061380, 14580910, 16039001, 29161820, 32078002, 64156004, 80195005, 160390010, 320780020]

約数ペア:

[(1, 320780020), (2, 160390010), (4, 80195005), (5, 64156004), (10, 32078002), (11, 29161820), (20, 16039001), (22, 14580910), (29, 11061380), (44, 7290455), (55, 5832364), (58, 5530690), (110, 2916182), (116, 2765345), (137, 2341460), (145, 2212276), (220, 1458091), (274, 1170730), (290, 1106138), (319, 1005580), (367, 874060), (548, 585365), (580, 553069), (638, 502790), (685, 468292), (734, 437030), (1276, 251395), (1370, 234146), (1468, 218515), (1507, 212860), (1595, 201116), (1835, 174812), (2740, 117073), (3014, 106430), (3190, 100558), (3670, 87406), (3973, 80740), (4037, 79460), (6028, 53215), (6380, 50279), (7340, 43703), (7535, 42572), (7946, 40370), (8074, 39730), (10643, 30140), (15070, 21286), (15892, 20185), (16148, 19865)]