80903900

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:137

約数の個数: 216

約数和(自身を含む): 237484800

約数和(自身を除く): 156580900

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 25, 28, 35, 38, 44, 49, 50, 55, 70, 76, 77, 79, 95, 98, 100, 110, 133, 140, 154, 158, 175, 190, 196, 209, 220, 245, 266, 275, 308, 316, 350, 380, 385, 395, 418, 475, 490, 532, 539, 550, 553, 665, 700, 770, 790, 836, 869, 931, 950, 980, 1045, 1078, 1100, 1106, 1225, 1330, 1463, 1501, 1540, 1580, 1738, 1862, 1900, 1925, 1975, 2090, 2156, 2212, 2450, 2660, 2695, 2765, 2926, 3002, 3325, 3476, 3724, 3850, 3871, 3950, 4180, 4345, 4655, 4900, 5225, 5390, 5530, 5852, 6004, 6083, 6650, 7315, 7505, 7700, 7742, 7900, 8690, 9310, 10241, 10450, 10507, 10780, 11060, 12166, 13300, 13475, 13825, 14630, 15010, 15484, 16511, 17380, 18620, 19355, 20482, 20900, 21014, 21725, 23275, 24332, 26950, 27650, 29260, 30020, 30415, 33022, 36575, 37525, 38710, 40964, 42028, 42581, 43450, 46550, 51205, 52535, 53900, 55300, 60830, 66044, 73150, 73549, 75050, 77420, 82555, 85162, 86900, 93100, 96775, 102410, 105070, 115577, 121660, 146300, 147098, 150100, 152075, 165110, 170324, 193550, 204820, 210140, 212905, 231154, 256025, 262675, 294196, 304150, 330220, 367745, 387100, 412775, 425810, 462308, 512050, 525350, 577885, 608300, 735490, 809039, 825550, 851620, 1024100, 1050700, 1064525, 1155770, 1470980, 1618078, 1651100, 1838725, 2129050, 2311540, 2889425, 3236156, 3677450, 4045195, 4258100, 5778850, 7354900, 8090390, 11557700, 16180780, 20225975, 40451950, 80903900]

約数ペア:

[(1, 80903900), (2, 40451950), (4, 20225975), (5, 16180780), (7, 11557700), (10, 8090390), (11, 7354900), (14, 5778850), (19, 4258100), (20, 4045195), (22, 3677450), (25, 3236156), (28, 2889425), (35, 2311540), (38, 2129050), (44, 1838725), (49, 1651100), (50, 1618078), (55, 1470980), (70, 1155770), (76, 1064525), (77, 1050700), (79, 1024100), (95, 851620), (98, 825550), (100, 809039), (110, 735490), (133, 608300), (140, 577885), (154, 525350), (158, 512050), (175, 462308), (190, 425810), (196, 412775), (209, 387100), (220, 367745), (245, 330220), (266, 304150), (275, 294196), (308, 262675), (316, 256025), (350, 231154), (380, 212905), (385, 210140), (395, 204820), (418, 193550), (475, 170324), (490, 165110), (532, 152075), (539, 150100), (550, 147098), (553, 146300), (665, 121660), (700, 115577), (770, 105070), (790, 102410), (836, 96775), (869, 93100), (931, 86900), (950, 85162), (980, 82555), (1045, 77420), (1078, 75050), (1100, 73549), (1106, 73150), (1225, 66044), (1330, 60830), (1463, 55300), (1501, 53900), (1540, 52535), (1580, 51205), (1738, 46550), (1862, 43450), (1900, 42581), (1925, 42028), (1975, 40964), (2090, 38710), (2156, 37525), (2212, 36575), (2450, 33022), (2660, 30415), (2695, 30020), (2765, 29260), (2926, 27650), (3002, 26950), (3325, 24332), (3476, 23275), (3724, 21725), (3850, 21014), (3871, 20900), (3950, 20482), (4180, 19355), (4345, 18620), (4655, 17380), (4900, 16511), (5225, 15484), (5390, 15010), (5530, 14630), (5852, 13825), (6004, 13475), (6083, 13300), (6650, 12166), (7315, 11060), (7505, 10780), (7700, 10507), (7742, 10450), (7900, 10241), (8690, 9310)]