20178382016

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{19543}}^1$

素因数の和:19658

約数の個数: 112

約数和(自身を含む): 46285977024

約数和(自身を除く): 26107595008

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 64, 68, 73, 104, 136, 146, 208, 221, 272, 292, 416, 442, 544, 584, 832, 884, 949, 1088, 1168, 1241, 1768, 1898, 2336, 2482, 3536, 3796, 4672, 4964, 7072, 7592, 9928, 14144, 15184, 16133, 19543, 19856, 30368, 32266, 39086, 39712, 60736, 64532, 78172, 79424, 129064, 156344, 254059, 258128, 312688, 332231, 508118, 516256, 625376, 664462, 1016236, 1032512, 1250752, 1328924, 1426639, 2032472, 2657848, 2853278, 4064944, 4319003, 5315696, 5706556, 8129888, 8638006, 10631392, 11413112, 16259776, 17276012, 18546307, 21262784, 22826224, 24252863, 34552024, 37092614, 45652448, 48505726, 69104048, 74185228, 91304896, 97011452, 138208096, 148370456, 194022904, 276416192, 296740912, 315287219, 388045808, 593481824, 630574438, 776091616, 1186963648, 1261148876, 1552183232, 2522297752, 5044595504, 10089191008, 20178382016]

約数ペア:

[(1, 20178382016), (2, 10089191008), (4, 5044595504), (8, 2522297752), (13, 1552183232), (16, 1261148876), (17, 1186963648), (26, 776091616), (32, 630574438), (34, 593481824), (52, 388045808), (64, 315287219), (68, 296740912), (73, 276416192), (104, 194022904), (136, 148370456), (146, 138208096), (208, 97011452), (221, 91304896), (272, 74185228), (292, 69104048), (416, 48505726), (442, 45652448), (544, 37092614), (584, 34552024), (832, 24252863), (884, 22826224), (949, 21262784), (1088, 18546307), (1168, 17276012), (1241, 16259776), (1768, 11413112), (1898, 10631392), (2336, 8638006), (2482, 8129888), (3536, 5706556), (3796, 5315696), (4672, 4319003), (4964, 4064944), (7072, 2853278), (7592, 2657848), (9928, 2032472), (14144, 1426639), (15184, 1328924), (16133, 1250752), (19543, 1032512), (19856, 1016236), (30368, 664462), (32266, 625376), (39086, 516256), (39712, 508118), (60736, 332231), (64532, 312688), (78172, 258128), (79424, 254059), (129064, 156344)]