816819220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{701}}^1$

素因数の和:794

約数の個数: 144

約数和(自身を含む): 2117540880

約数和(自身を除く): 1300721660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 41, 49, 58, 70, 82, 98, 116, 140, 145, 164, 196, 203, 205, 245, 287, 290, 406, 410, 490, 574, 580, 701, 812, 820, 980, 1015, 1148, 1189, 1402, 1421, 1435, 2009, 2030, 2378, 2804, 2842, 2870, 3505, 4018, 4060, 4756, 4907, 5684, 5740, 5945, 7010, 7105, 8036, 8323, 9814, 10045, 11890, 14020, 14210, 16646, 19628, 20090, 20329, 23780, 24535, 28420, 28741, 33292, 34349, 40180, 40658, 41615, 49070, 57482, 58261, 68698, 81316, 83230, 98140, 101645, 114964, 116522, 137396, 142303, 143705, 166460, 171745, 201187, 203290, 233044, 284606, 287410, 291305, 343490, 402374, 406580, 569212, 574820, 582610, 686980, 711515, 804748, 833489, 996121, 1005935, 1165220, 1408309, 1423030, 1666978, 1992242, 2011870, 2816618, 2846060, 3333956, 3984484, 4023740, 4167445, 4980605, 5633236, 5834423, 7041545, 8334890, 9961210, 11668846, 14083090, 16669780, 19922420, 23337692, 28166180, 29172115, 40840961, 58344230, 81681922, 116688460, 163363844, 204204805, 408409610, 816819220]

約数ペア:

[(1, 816819220), (2, 408409610), (4, 204204805), (5, 163363844), (7, 116688460), (10, 81681922), (14, 58344230), (20, 40840961), (28, 29172115), (29, 28166180), (35, 23337692), (41, 19922420), (49, 16669780), (58, 14083090), (70, 11668846), (82, 9961210), (98, 8334890), (116, 7041545), (140, 5834423), (145, 5633236), (164, 4980605), (196, 4167445), (203, 4023740), (205, 3984484), (245, 3333956), (287, 2846060), (290, 2816618), (406, 2011870), (410, 1992242), (490, 1666978), (574, 1423030), (580, 1408309), (701, 1165220), (812, 1005935), (820, 996121), (980, 833489), (1015, 804748), (1148, 711515), (1189, 686980), (1402, 582610), (1421, 574820), (1435, 569212), (2009, 406580), (2030, 402374), (2378, 343490), (2804, 291305), (2842, 287410), (2870, 284606), (3505, 233044), (4018, 203290), (4060, 201187), (4756, 171745), (4907, 166460), (5684, 143705), (5740, 142303), (5945, 137396), (7010, 116522), (7105, 114964), (8036, 101645), (8323, 98140), (9814, 83230), (10045, 81316), (11890, 68698), (14020, 58261), (14210, 57482), (16646, 49070), (19628, 41615), (20090, 40658), (20329, 40180), (23780, 34349), (24535, 33292), (28420, 28741)]