165661651580

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1\times {\mathrm{540989}}^1$

素因数の和:541310

約数の個数: 48

約数和(自身を含む): 355001965920

約数和(自身を除く): 189340314340

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 251, 305, 502, 610, 1004, 1220, 1255, 2510, 5020, 15311, 30622, 61244, 76555, 153110, 306220, 540989, 1081978, 2163956, 2704945, 5409890, 10819780, 33000329, 66000658, 132001316, 135788239, 165001645, 271576478, 330003290, 543152956, 660006580, 678941195, 1357882390, 2715764780, 8283082579, 16566165158, 33132330316, 41415412895, 82830825790, 165661651580]

約数ペア:

[(1, 165661651580), (2, 82830825790), (4, 41415412895), (5, 33132330316), (10, 16566165158), (20, 8283082579), (61, 2715764780), (122, 1357882390), (244, 678941195), (251, 660006580), (305, 543152956), (502, 330003290), (610, 271576478), (1004, 165001645), (1220, 135788239), (1255, 132001316), (2510, 66000658), (5020, 33000329), (15311, 10819780), (30622, 5409890), (61244, 2704945), (76555, 2163956), (153110, 1081978), (306220, 540989)]