80458768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20359}}^1$

素因数の和:20399

約数の個数: 40

約数和(自身を含む): 176724800

約数和(自身を除く): 96266032

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 20359, 40718, 81436, 162872, 264667, 325744, 386821, 529334, 773642, 1058668, 1547284, 2117336, 3094568, 4234672, 5028673, 6189136, 10057346, 20114692, 40229384, 80458768]

約数ペア:

[(1, 80458768), (2, 40229384), (4, 20114692), (8, 10057346), (13, 6189136), (16, 5028673), (19, 4234672), (26, 3094568), (38, 2117336), (52, 1547284), (76, 1058668), (104, 773642), (152, 529334), (208, 386821), (247, 325744), (304, 264667), (494, 162872), (988, 81436), (1976, 40718), (3952, 20359)]