80005504

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:591

約数の個数: 64

約数和(自身を含む): 170625600

約数和(自身を除く): 90620096

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 67, 76, 128, 134, 152, 268, 304, 491, 536, 608, 982, 1072, 1216, 1273, 1964, 2144, 2432, 2546, 3928, 4288, 5092, 7856, 8576, 9329, 10184, 15712, 18658, 20368, 31424, 32897, 37316, 40736, 62848, 65794, 74632, 81472, 131588, 149264, 162944, 263176, 298528, 526352, 597056, 625043, 1052704, 1194112, 1250086, 2105408, 2500172, 4210816, 5000344, 10000688, 20001376, 40002752, 80005504]

約数ペア:

[(1, 80005504), (2, 40002752), (4, 20001376), (8, 10000688), (16, 5000344), (19, 4210816), (32, 2500172), (38, 2105408), (64, 1250086), (67, 1194112), (76, 1052704), (128, 625043), (134, 597056), (152, 526352), (268, 298528), (304, 263176), (491, 162944), (536, 149264), (608, 131588), (982, 81472), (1072, 74632), (1216, 65794), (1273, 62848), (1964, 40736), (2144, 37316), (2432, 32897), (2546, 31424), (3928, 20368), (4288, 18658), (5092, 15712), (7856, 10184), (8576, 9329)]