68540920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:437

約数の個数: 128

約数和(自身を含む): 190771200

約数和(自身を除く): 122230280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 115, 116, 140, 145, 161, 184, 203, 230, 232, 280, 290, 322, 367, 406, 460, 580, 644, 667, 734, 805, 812, 920, 1015, 1160, 1288, 1334, 1468, 1610, 1624, 1835, 2030, 2569, 2668, 2936, 3220, 3335, 3670, 4060, 4669, 5138, 5336, 6440, 6670, 7340, 8120, 8441, 9338, 10276, 10643, 12845, 13340, 14680, 16882, 18676, 20552, 21286, 23345, 25690, 26680, 33764, 37352, 42205, 42572, 46690, 51380, 53215, 59087, 67528, 74501, 84410, 85144, 93380, 102760, 106430, 118174, 149002, 168820, 186760, 212860, 236348, 244789, 295435, 298004, 337640, 372505, 425720, 472696, 489578, 590870, 596008, 745010, 979156, 1181740, 1223945, 1490020, 1713523, 1958312, 2363480, 2447890, 2980040, 3427046, 4895780, 6854092, 8567615, 9791560, 13708184, 17135230, 34270460, 68540920]

約数ペア:

[(1, 68540920), (2, 34270460), (4, 17135230), (5, 13708184), (7, 9791560), (8, 8567615), (10, 6854092), (14, 4895780), (20, 3427046), (23, 2980040), (28, 2447890), (29, 2363480), (35, 1958312), (40, 1713523), (46, 1490020), (56, 1223945), (58, 1181740), (70, 979156), (92, 745010), (115, 596008), (116, 590870), (140, 489578), (145, 472696), (161, 425720), (184, 372505), (203, 337640), (230, 298004), (232, 295435), (280, 244789), (290, 236348), (322, 212860), (367, 186760), (406, 168820), (460, 149002), (580, 118174), (644, 106430), (667, 102760), (734, 93380), (805, 85144), (812, 84410), (920, 74501), (1015, 67528), (1160, 59087), (1288, 53215), (1334, 51380), (1468, 46690), (1610, 42572), (1624, 42205), (1835, 37352), (2030, 33764), (2569, 26680), (2668, 25690), (2936, 23345), (3220, 21286), (3335, 20552), (3670, 18676), (4060, 16882), (4669, 14680), (5138, 13340), (5336, 12845), (6440, 10643), (6670, 10276), (7340, 9338), (8120, 8441)]