81641448

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:416

約数の個数: 144

約数和(自身を含む): 261558180

約数和(自身を除く): 179916732

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 73, 84, 98, 126, 146, 147, 168, 196, 219, 252, 292, 294, 317, 392, 438, 441, 504, 511, 584, 588, 634, 657, 876, 882, 951, 1022, 1176, 1268, 1314, 1533, 1752, 1764, 1902, 2044, 2219, 2536, 2628, 2853, 3066, 3528, 3577, 3804, 4088, 4438, 4599, 5256, 5706, 6132, 6657, 7154, 7608, 8876, 9198, 10731, 11412, 12264, 13314, 14308, 15533, 17752, 18396, 19971, 21462, 22824, 23141, 26628, 28616, 31066, 32193, 36792, 39942, 42924, 46282, 46599, 53256, 62132, 64386, 69423, 79884, 85848, 92564, 93198, 124264, 128772, 138846, 139797, 159768, 161987, 185128, 186396, 208269, 257544, 277692, 279594, 323974, 372792, 416538, 485961, 555384, 559188, 647948, 833076, 971922, 1118376, 1133909, 1295896, 1457883, 1666152, 1943844, 2267818, 2915766, 3401727, 3887688, 4535636, 5831532, 6803454, 9071272, 10205181, 11663064, 13606908, 20410362, 27213816, 40820724, 81641448]

約数ペア:

[(1, 81641448), (2, 40820724), (3, 27213816), (4, 20410362), (6, 13606908), (7, 11663064), (8, 10205181), (9, 9071272), (12, 6803454), (14, 5831532), (18, 4535636), (21, 3887688), (24, 3401727), (28, 2915766), (36, 2267818), (42, 1943844), (49, 1666152), (56, 1457883), (63, 1295896), (72, 1133909), (73, 1118376), (84, 971922), (98, 833076), (126, 647948), (146, 559188), (147, 555384), (168, 485961), (196, 416538), (219, 372792), (252, 323974), (292, 279594), (294, 277692), (317, 257544), (392, 208269), (438, 186396), (441, 185128), (504, 161987), (511, 159768), (584, 139797), (588, 138846), (634, 128772), (657, 124264), (876, 93198), (882, 92564), (951, 85848), (1022, 79884), (1176, 69423), (1268, 64386), (1314, 62132), (1533, 53256), (1752, 46599), (1764, 46282), (1902, 42924), (2044, 39942), (2219, 36792), (2536, 32193), (2628, 31066), (2853, 28616), (3066, 26628), (3528, 23141), (3577, 22824), (3804, 21462), (4088, 19971), (4438, 18396), (4599, 17752), (5256, 15533), (5706, 14308), (6132, 13314), (6657, 12264), (7154, 11412), (7608, 10731), (8876, 9198)]