80774540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:220

約数の個数: 144

約数和(自身を含む): 220631040

約数和(自身を除く): 139856500

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 59, 70, 77, 98, 110, 118, 127, 140, 154, 196, 220, 236, 245, 254, 295, 308, 385, 413, 490, 508, 539, 590, 635, 649, 770, 826, 889, 980, 1078, 1180, 1270, 1298, 1397, 1540, 1652, 1778, 2065, 2156, 2540, 2596, 2695, 2794, 2891, 3245, 3556, 4130, 4445, 4543, 5390, 5588, 5782, 6223, 6490, 6985, 7493, 8260, 8890, 9086, 9779, 10780, 11564, 12446, 12980, 13970, 14455, 14986, 17780, 18172, 19558, 22715, 24892, 27940, 28910, 29972, 31115, 31801, 37465, 39116, 45430, 48895, 52451, 57820, 62230, 63602, 68453, 74930, 82423, 90860, 97790, 104902, 124460, 127204, 136906, 149860, 159005, 164846, 195580, 209804, 262255, 273812, 318010, 329692, 342265, 367157, 412115, 524510, 576961, 636020, 684530, 734314, 824230, 1049020, 1153922, 1369060, 1468628, 1648460, 1835785, 2307844, 2884805, 3671570, 4038727, 5769610, 7343140, 8077454, 11539220, 16154908, 20193635, 40387270, 80774540]

約数ペア:

[(1, 80774540), (2, 40387270), (4, 20193635), (5, 16154908), (7, 11539220), (10, 8077454), (11, 7343140), (14, 5769610), (20, 4038727), (22, 3671570), (28, 2884805), (35, 2307844), (44, 1835785), (49, 1648460), (55, 1468628), (59, 1369060), (70, 1153922), (77, 1049020), (98, 824230), (110, 734314), (118, 684530), (127, 636020), (140, 576961), (154, 524510), (196, 412115), (220, 367157), (236, 342265), (245, 329692), (254, 318010), (295, 273812), (308, 262255), (385, 209804), (413, 195580), (490, 164846), (508, 159005), (539, 149860), (590, 136906), (635, 127204), (649, 124460), (770, 104902), (826, 97790), (889, 90860), (980, 82423), (1078, 74930), (1180, 68453), (1270, 63602), (1298, 62230), (1397, 57820), (1540, 52451), (1652, 48895), (1778, 45430), (2065, 39116), (2156, 37465), (2540, 31801), (2596, 31115), (2695, 29972), (2794, 28910), (2891, 27940), (3245, 24892), (3556, 22715), (4130, 19558), (4445, 18172), (4543, 17780), (5390, 14986), (5588, 14455), (5782, 13970), (6223, 12980), (6490, 12446), (6985, 11564), (7493, 10780), (8260, 9779), (8890, 9086)]