128047360

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:520

約数の個数: 144

約数和(自身を含む): 362621952

約数和(自身を除く): 234574592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 280, 310, 320, 434, 448, 461, 496, 560, 620, 640, 868, 896, 922, 992, 1085, 1120, 1240, 1280, 1736, 1792, 1844, 1984, 2170, 2240, 2305, 2480, 3227, 3472, 3688, 3968, 4340, 4480, 4610, 4960, 6454, 6944, 7376, 7936, 8680, 8960, 9220, 9920, 12908, 13888, 14291, 14752, 16135, 17360, 18440, 19840, 25816, 27776, 28582, 29504, 32270, 34720, 36880, 39680, 51632, 55552, 57164, 59008, 64540, 69440, 71455, 73760, 100037, 103264, 114328, 118016, 129080, 138880, 142910, 147520, 200074, 206528, 228656, 258160, 277760, 285820, 295040, 400148, 413056, 457312, 500185, 516320, 571640, 590080, 800296, 826112, 914624, 1000370, 1032640, 1143280, 1600592, 1829248, 2000740, 2065280, 2286560, 3201184, 3658496, 4001480, 4130560, 4573120, 6402368, 8002960, 9146240, 12804736, 16005920, 18292480, 25609472, 32011840, 64023680, 128047360]

約数ペア:

[(1, 128047360), (2, 64023680), (4, 32011840), (5, 25609472), (7, 18292480), (8, 16005920), (10, 12804736), (14, 9146240), (16, 8002960), (20, 6402368), (28, 4573120), (31, 4130560), (32, 4001480), (35, 3658496), (40, 3201184), (56, 2286560), (62, 2065280), (64, 2000740), (70, 1829248), (80, 1600592), (112, 1143280), (124, 1032640), (128, 1000370), (140, 914624), (155, 826112), (160, 800296), (217, 590080), (224, 571640), (248, 516320), (256, 500185), (280, 457312), (310, 413056), (320, 400148), (434, 295040), (448, 285820), (461, 277760), (496, 258160), (560, 228656), (620, 206528), (640, 200074), (868, 147520), (896, 142910), (922, 138880), (992, 129080), (1085, 118016), (1120, 114328), (1240, 103264), (1280, 100037), (1736, 73760), (1792, 71455), (1844, 69440), (1984, 64540), (2170, 59008), (2240, 57164), (2305, 55552), (2480, 51632), (3227, 39680), (3472, 36880), (3688, 34720), (3968, 32270), (4340, 29504), (4480, 28582), (4610, 27776), (4960, 25816), (6454, 19840), (6944, 18440), (7376, 17360), (7936, 16135), (8680, 14752), (8960, 14291), (9220, 13888), (9920, 12908)]