261751848

素因数分解:

$2^3\times 3^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:255

約数の個数: 128

約数和(自身を含む): 705024000

約数和(自身を除く): 443272152

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 31, 59, 62, 67, 89, 93, 118, 124, 134, 177, 178, 186, 201, 236, 248, 267, 268, 354, 356, 372, 402, 472, 534, 536, 708, 712, 744, 804, 1068, 1416, 1608, 1829, 2077, 2136, 2759, 3658, 3953, 4154, 5251, 5487, 5518, 5963, 6231, 7316, 7906, 8277, 8308, 10502, 10974, 11036, 11859, 11926, 12462, 14632, 15753, 15812, 16554, 16616, 17889, 21004, 21948, 22072, 23718, 23852, 24924, 31506, 31624, 33108, 35778, 42008, 43896, 47436, 47704, 49848, 63012, 66216, 71556, 94872, 122543, 126024, 143112, 162781, 184853, 245086, 325562, 351817, 367629, 369706, 488343, 490172, 554559, 651124, 703634, 735258, 739412, 976686, 980344, 1055451, 1109118, 1302248, 1407268, 1470516, 1478824, 1953372, 2110902, 2218236, 2814536, 2941032, 3906744, 4221804, 4436472, 8443608, 10906327, 21812654, 32718981, 43625308, 65437962, 87250616, 130875924, 261751848]

約数ペア:

[(1, 261751848), (2, 130875924), (3, 87250616), (4, 65437962), (6, 43625308), (8, 32718981), (12, 21812654), (24, 10906327), (31, 8443608), (59, 4436472), (62, 4221804), (67, 3906744), (89, 2941032), (93, 2814536), (118, 2218236), (124, 2110902), (134, 1953372), (177, 1478824), (178, 1470516), (186, 1407268), (201, 1302248), (236, 1109118), (248, 1055451), (267, 980344), (268, 976686), (354, 739412), (356, 735258), (372, 703634), (402, 651124), (472, 554559), (534, 490172), (536, 488343), (708, 369706), (712, 367629), (744, 351817), (804, 325562), (1068, 245086), (1416, 184853), (1608, 162781), (1829, 143112), (2077, 126024), (2136, 122543), (2759, 94872), (3658, 71556), (3953, 66216), (4154, 63012), (5251, 49848), (5487, 47704), (5518, 47436), (5963, 43896), (6231, 42008), (7316, 35778), (7906, 33108), (8277, 31624), (8308, 31506), (10502, 24924), (10974, 23852), (11036, 23718), (11859, 22072), (11926, 21948), (12462, 21004), (14632, 17889), (15753, 16616), (15812, 16554)]