51981280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{373}}^1$

素因数の和:468

約数の個数: 96

約数和(自身を含む): 134586144

約数和(自身を除く): 82604864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 67, 80, 104, 130, 134, 160, 208, 260, 268, 335, 373, 416, 520, 536, 670, 746, 871, 1040, 1072, 1340, 1492, 1742, 1865, 2080, 2144, 2680, 2984, 3484, 3730, 4355, 4849, 5360, 5968, 6968, 7460, 8710, 9698, 10720, 11936, 13936, 14920, 17420, 19396, 24245, 24991, 27872, 29840, 34840, 38792, 48490, 49982, 59680, 69680, 77584, 96980, 99964, 124955, 139360, 155168, 193960, 199928, 249910, 324883, 387920, 399856, 499820, 649766, 775840, 799712, 999640, 1299532, 1624415, 1999280, 2599064, 3248830, 3998560, 5198128, 6497660, 10396256, 12995320, 25990640, 51981280]

約数ペア:

[(1, 51981280), (2, 25990640), (4, 12995320), (5, 10396256), (8, 6497660), (10, 5198128), (13, 3998560), (16, 3248830), (20, 2599064), (26, 1999280), (32, 1624415), (40, 1299532), (52, 999640), (65, 799712), (67, 775840), (80, 649766), (104, 499820), (130, 399856), (134, 387920), (160, 324883), (208, 249910), (260, 199928), (268, 193960), (335, 155168), (373, 139360), (416, 124955), (520, 99964), (536, 96980), (670, 77584), (746, 69680), (871, 59680), (1040, 49982), (1072, 48490), (1340, 38792), (1492, 34840), (1742, 29840), (1865, 27872), (2080, 24991), (2144, 24245), (2680, 19396), (2984, 17420), (3484, 14920), (3730, 13936), (4355, 11936), (4849, 10720), (5360, 9698), (5968, 8710), (6968, 7460)]