131440000

素因数分解:

$2^7\times 5^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:118

約数の個数: 160

約数和(自身を含む): 344139840

約数和(自身を除く): 212699840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 53, 62, 64, 80, 100, 106, 124, 125, 128, 155, 160, 200, 212, 248, 250, 265, 310, 320, 400, 424, 496, 500, 530, 620, 625, 640, 775, 800, 848, 992, 1000, 1060, 1240, 1250, 1325, 1550, 1600, 1643, 1696, 1984, 2000, 2120, 2480, 2500, 2650, 3100, 3200, 3286, 3392, 3875, 3968, 4000, 4240, 4960, 5000, 5300, 6200, 6572, 6625, 6784, 7750, 8000, 8215, 8480, 9920, 10000, 10600, 12400, 13144, 13250, 15500, 16000, 16430, 16960, 19375, 19840, 20000, 21200, 24800, 26288, 26500, 31000, 32860, 33125, 33920, 38750, 40000, 41075, 42400, 49600, 52576, 53000, 62000, 65720, 66250, 77500, 80000, 82150, 84800, 99200, 105152, 106000, 124000, 131440, 132500, 155000, 164300, 169600, 205375, 210304, 212000, 248000, 262880, 265000, 310000, 328600, 410750, 424000, 496000, 525760, 530000, 620000, 657200, 821500, 848000, 1026875, 1051520, 1060000, 1240000, 1314400, 1643000, 2053750, 2120000, 2480000, 2628800, 3286000, 4107500, 4240000, 5257600, 6572000, 8215000, 13144000, 16430000, 26288000, 32860000, 65720000, 131440000]

約数ペア:

[(1, 131440000), (2, 65720000), (4, 32860000), (5, 26288000), (8, 16430000), (10, 13144000), (16, 8215000), (20, 6572000), (25, 5257600), (31, 4240000), (32, 4107500), (40, 3286000), (50, 2628800), (53, 2480000), (62, 2120000), (64, 2053750), (80, 1643000), (100, 1314400), (106, 1240000), (124, 1060000), (125, 1051520), (128, 1026875), (155, 848000), (160, 821500), (200, 657200), (212, 620000), (248, 530000), (250, 525760), (265, 496000), (310, 424000), (320, 410750), (400, 328600), (424, 310000), (496, 265000), (500, 262880), (530, 248000), (620, 212000), (625, 210304), (640, 205375), (775, 169600), (800, 164300), (848, 155000), (992, 132500), (1000, 131440), (1060, 124000), (1240, 106000), (1250, 105152), (1325, 99200), (1550, 84800), (1600, 82150), (1643, 80000), (1696, 77500), (1984, 66250), (2000, 65720), (2120, 62000), (2480, 53000), (2500, 52576), (2650, 49600), (3100, 42400), (3200, 41075), (3286, 40000), (3392, 38750), (3875, 33920), (3968, 33125), (4000, 32860), (4240, 31000), (4960, 26500), (5000, 26288), (5300, 24800), (6200, 21200), (6572, 20000), (6625, 19840), (6784, 19375), (7750, 16960), (8000, 16430), (8215, 16000), (8480, 15500), (9920, 13250), (10000, 13144), (10600, 12400)]