20878684528

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{2269}}^1$

素因数の和:2427

約数の個数: 120

約数和(自身を含む): 45432560880

約数和(自身を除く): 24553876352

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 82, 83, 104, 164, 166, 169, 208, 328, 332, 338, 533, 656, 664, 676, 1066, 1079, 1328, 1352, 2132, 2158, 2269, 2704, 3403, 4264, 4316, 4538, 6806, 6929, 8528, 8632, 9076, 13612, 13858, 14027, 17264, 18152, 27224, 27716, 28054, 29497, 36304, 44239, 54448, 55432, 56108, 58994, 88478, 93029, 110864, 112216, 117988, 176956, 186058, 188327, 224432, 235976, 353912, 372116, 376654, 383461, 471952, 575107, 707824, 744232, 753308, 766922, 1150214, 1209377, 1488464, 1506616, 1533844, 2300428, 2418754, 2448251, 3013232, 3067688, 4600856, 4837508, 4896502, 6135376, 7721407, 9201712, 9675016, 9793004, 15442814, 15721901, 19350032, 19586008, 30885628, 31443802, 31827263, 39172016, 61771256, 62887604, 63654526, 100378291, 123542512, 125775208, 127309052, 200756582, 251550416, 254618104, 401513164, 509236208, 803026328, 1304917783, 1606052656, 2609835566, 5219671132, 10439342264, 20878684528]

約数ペア:

[(1, 20878684528), (2, 10439342264), (4, 5219671132), (8, 2609835566), (13, 1606052656), (16, 1304917783), (26, 803026328), (41, 509236208), (52, 401513164), (82, 254618104), (83, 251550416), (104, 200756582), (164, 127309052), (166, 125775208), (169, 123542512), (208, 100378291), (328, 63654526), (332, 62887604), (338, 61771256), (533, 39172016), (656, 31827263), (664, 31443802), (676, 30885628), (1066, 19586008), (1079, 19350032), (1328, 15721901), (1352, 15442814), (2132, 9793004), (2158, 9675016), (2269, 9201712), (2704, 7721407), (3403, 6135376), (4264, 4896502), (4316, 4837508), (4538, 4600856), (6806, 3067688), (6929, 3013232), (8528, 2448251), (8632, 2418754), (9076, 2300428), (13612, 1533844), (13858, 1506616), (14027, 1488464), (17264, 1209377), (18152, 1150214), (27224, 766922), (27716, 753308), (28054, 744232), (29497, 707824), (36304, 575107), (44239, 471952), (54448, 383461), (55432, 376654), (56108, 372116), (58994, 353912), (88478, 235976), (93029, 224432), (110864, 188327), (112216, 186058), (117988, 176956)]