81754400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1123}}^1$

素因数の和:1163

約数の個数: 144

約数和(自身を含む): 245859264

約数和(自身を除く): 164104864

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 32, 35, 40, 50, 52, 56, 65, 70, 80, 91, 100, 104, 112, 130, 140, 160, 175, 182, 200, 208, 224, 260, 280, 325, 350, 364, 400, 416, 455, 520, 560, 650, 700, 728, 800, 910, 1040, 1120, 1123, 1300, 1400, 1456, 1820, 2080, 2246, 2275, 2600, 2800, 2912, 3640, 4492, 4550, 5200, 5600, 5615, 7280, 7861, 8984, 9100, 10400, 11230, 14560, 14599, 15722, 17968, 18200, 22460, 28075, 29198, 31444, 35936, 36400, 39305, 44920, 56150, 58396, 62888, 72800, 72995, 78610, 89840, 102193, 112300, 116792, 125776, 145990, 157220, 179680, 196525, 204386, 224600, 233584, 251552, 291980, 314440, 364975, 393050, 408772, 449200, 467168, 510965, 583960, 628880, 729950, 786100, 817544, 898400, 1021930, 1167920, 1257760, 1459900, 1572200, 1635088, 2043860, 2335840, 2554825, 2919800, 3144400, 3270176, 4087720, 5109650, 5839600, 6288800, 8175440, 10219300, 11679200, 16350880, 20438600, 40877200, 81754400]

約数ペア:

[(1, 81754400), (2, 40877200), (4, 20438600), (5, 16350880), (7, 11679200), (8, 10219300), (10, 8175440), (13, 6288800), (14, 5839600), (16, 5109650), (20, 4087720), (25, 3270176), (26, 3144400), (28, 2919800), (32, 2554825), (35, 2335840), (40, 2043860), (50, 1635088), (52, 1572200), (56, 1459900), (65, 1257760), (70, 1167920), (80, 1021930), (91, 898400), (100, 817544), (104, 786100), (112, 729950), (130, 628880), (140, 583960), (160, 510965), (175, 467168), (182, 449200), (200, 408772), (208, 393050), (224, 364975), (260, 314440), (280, 291980), (325, 251552), (350, 233584), (364, 224600), (400, 204386), (416, 196525), (455, 179680), (520, 157220), (560, 145990), (650, 125776), (700, 116792), (728, 112300), (800, 102193), (910, 89840), (1040, 78610), (1120, 72995), (1123, 72800), (1300, 62888), (1400, 58396), (1456, 56150), (1820, 44920), (2080, 39305), (2246, 36400), (2275, 35936), (2600, 31444), (2800, 29198), (2912, 28075), (3640, 22460), (4492, 18200), (4550, 17968), (5200, 15722), (5600, 14599), (5615, 14560), (7280, 11230), (7861, 10400), (8984, 9100)]