71970220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 191213568

約数和(自身を除く): 119243348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 49, 62, 70, 92, 98, 103, 115, 124, 140, 155, 161, 196, 206, 217, 230, 245, 310, 322, 412, 434, 460, 490, 515, 620, 644, 713, 721, 805, 868, 980, 1030, 1085, 1127, 1426, 1442, 1519, 1610, 2060, 2170, 2254, 2369, 2852, 2884, 3038, 3193, 3220, 3565, 3605, 4340, 4508, 4738, 4991, 5047, 5635, 6076, 6386, 7130, 7210, 7595, 9476, 9982, 10094, 11270, 11845, 12772, 14260, 14420, 15190, 15965, 16583, 19964, 20188, 22351, 22540, 23690, 24955, 25235, 30380, 31930, 33166, 34937, 44702, 47380, 49910, 50470, 63860, 66332, 69874, 73439, 82915, 89404, 99820, 100940, 111755, 116081, 139748, 146878, 156457, 165830, 174685, 223510, 232162, 293756, 312914, 331660, 349370, 367195, 447020, 464324, 514073, 580405, 625828, 698740, 734390, 782285, 1028146, 1160810, 1468780, 1564570, 2056292, 2321620, 2570365, 3129140, 3598511, 5140730, 7197022, 10281460, 14394044, 17992555, 35985110, 71970220]

約数ペア:

[(1, 71970220), (2, 35985110), (4, 17992555), (5, 14394044), (7, 10281460), (10, 7197022), (14, 5140730), (20, 3598511), (23, 3129140), (28, 2570365), (31, 2321620), (35, 2056292), (46, 1564570), (49, 1468780), (62, 1160810), (70, 1028146), (92, 782285), (98, 734390), (103, 698740), (115, 625828), (124, 580405), (140, 514073), (155, 464324), (161, 447020), (196, 367195), (206, 349370), (217, 331660), (230, 312914), (245, 293756), (310, 232162), (322, 223510), (412, 174685), (434, 165830), (460, 156457), (490, 146878), (515, 139748), (620, 116081), (644, 111755), (713, 100940), (721, 99820), (805, 89404), (868, 82915), (980, 73439), (1030, 69874), (1085, 66332), (1127, 63860), (1426, 50470), (1442, 49910), (1519, 47380), (1610, 44702), (2060, 34937), (2170, 33166), (2254, 31930), (2369, 30380), (2852, 25235), (2884, 24955), (3038, 23690), (3193, 22540), (3220, 22351), (3565, 20188), (3605, 19964), (4340, 16583), (4508, 15965), (4738, 15190), (4991, 14420), (5047, 14260), (5635, 12772), (6076, 11845), (6386, 11270), (7130, 10094), (7210, 9982), (7595, 9476)]