16180780

素因数分解:

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

素因数の和:132

約数の個数: 144

約数和(自身を含む): 45964800

約数和(自身を除く): 29784020

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 79, 95, 98, 110, 133, 140, 154, 158, 190, 196, 209, 220, 245, 266, 308, 316, 380, 385, 395, 418, 490, 532, 539, 553, 665, 770, 790, 836, 869, 931, 980, 1045, 1078, 1106, 1330, 1463, 1501, 1540, 1580, 1738, 1862, 2090, 2156, 2212, 2660, 2695, 2765, 2926, 3002, 3476, 3724, 3871, 4180, 4345, 4655, 5390, 5530, 5852, 6004, 6083, 7315, 7505, 7742, 8690, 9310, 10241, 10507, 10780, 11060, 12166, 14630, 15010, 15484, 16511, 17380, 18620, 19355, 20482, 21014, 24332, 29260, 30020, 30415, 33022, 38710, 40964, 42028, 42581, 51205, 52535, 60830, 66044, 73549, 77420, 82555, 85162, 102410, 105070, 115577, 121660, 147098, 165110, 170324, 204820, 210140, 212905, 231154, 294196, 330220, 367745, 425810, 462308, 577885, 735490, 809039, 851620, 1155770, 1470980, 1618078, 2311540, 3236156, 4045195, 8090390, 16180780]

約数ペア:

[(1, 16180780), (2, 8090390), (4, 4045195), (5, 3236156), (7, 2311540), (10, 1618078), (11, 1470980), (14, 1155770), (19, 851620), (20, 809039), (22, 735490), (28, 577885), (35, 462308), (38, 425810), (44, 367745), (49, 330220), (55, 294196), (70, 231154), (76, 212905), (77, 210140), (79, 204820), (95, 170324), (98, 165110), (110, 147098), (133, 121660), (140, 115577), (154, 105070), (158, 102410), (190, 85162), (196, 82555), (209, 77420), (220, 73549), (245, 66044), (266, 60830), (308, 52535), (316, 51205), (380, 42581), (385, 42028), (395, 40964), (418, 38710), (490, 33022), (532, 30415), (539, 30020), (553, 29260), (665, 24332), (770, 21014), (790, 20482), (836, 19355), (869, 18620), (931, 17380), (980, 16511), (1045, 15484), (1078, 15010), (1106, 14630), (1330, 12166), (1463, 11060), (1501, 10780), (1540, 10507), (1580, 10241), (1738, 9310), (1862, 8690), (2090, 7742), (2156, 7505), (2212, 7315), (2660, 6083), (2695, 6004), (2765, 5852), (2926, 5530), (3002, 5390), (3476, 4655), (3724, 4345), (3871, 4180)]