20122520912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83471}}^1$

素因数の和:83572

約数の個数: 80

約数和(自身を含む): 44921291520

約数和(自身を除く): 24798770608

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 61, 76, 104, 122, 152, 208, 244, 247, 304, 488, 494, 793, 976, 988, 1159, 1586, 1976, 2318, 3172, 3952, 4636, 6344, 9272, 12688, 15067, 18544, 30134, 60268, 83471, 120536, 166942, 241072, 333884, 667768, 1085123, 1335536, 1585949, 2170246, 3171898, 4340492, 5091731, 6343796, 8680984, 10183462, 12687592, 17361968, 20366924, 20617337, 25375184, 40733848, 41234674, 66192503, 81467696, 82469348, 96742889, 132385006, 164938696, 193485778, 264770012, 329877392, 386971556, 529540024, 773943112, 1059080048, 1257657557, 1547886224, 2515315114, 5030630228, 10061260456, 20122520912]

約数ペア:

[(1, 20122520912), (2, 10061260456), (4, 5030630228), (8, 2515315114), (13, 1547886224), (16, 1257657557), (19, 1059080048), (26, 773943112), (38, 529540024), (52, 386971556), (61, 329877392), (76, 264770012), (104, 193485778), (122, 164938696), (152, 132385006), (208, 96742889), (244, 82469348), (247, 81467696), (304, 66192503), (488, 41234674), (494, 40733848), (793, 25375184), (976, 20617337), (988, 20366924), (1159, 17361968), (1586, 12687592), (1976, 10183462), (2318, 8680984), (3172, 6343796), (3952, 5091731), (4636, 4340492), (6344, 3171898), (9272, 2170246), (12688, 1585949), (15067, 1335536), (18544, 1085123), (30134, 667768), (60268, 333884), (83471, 241072), (120536, 166942)]