127821680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:287

約数の個数: 160

約数和(自身を含む): 361881600

約数和(自身を除く): 234059920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 37, 40, 56, 62, 70, 74, 80, 112, 124, 140, 148, 155, 185, 199, 217, 248, 259, 280, 296, 310, 370, 398, 434, 496, 518, 560, 592, 620, 740, 796, 868, 995, 1036, 1085, 1147, 1240, 1295, 1393, 1480, 1592, 1736, 1990, 2072, 2170, 2294, 2480, 2590, 2786, 2960, 3184, 3472, 3980, 4144, 4340, 4588, 5180, 5572, 5735, 6169, 6965, 7363, 7960, 8029, 8680, 9176, 10360, 11144, 11470, 12338, 13930, 14726, 15920, 16058, 17360, 18352, 20720, 22288, 22940, 24676, 27860, 29452, 30845, 32116, 36815, 40145, 43183, 45880, 49352, 51541, 55720, 58904, 61690, 64232, 73630, 80290, 86366, 91760, 98704, 103082, 111440, 117808, 123380, 128464, 147260, 160580, 172732, 206164, 215915, 228253, 246760, 257705, 294520, 321160, 345464, 412328, 431830, 456506, 493520, 515410, 589040, 642320, 690928, 824656, 863660, 913012, 1030820, 1141265, 1597771, 1727320, 1826024, 2061640, 2282530, 3195542, 3454640, 3652048, 4123280, 4565060, 6391084, 7988855, 9130120, 12782168, 15977710, 18260240, 25564336, 31955420, 63910840, 127821680]

約数ペア:

[(1, 127821680), (2, 63910840), (4, 31955420), (5, 25564336), (7, 18260240), (8, 15977710), (10, 12782168), (14, 9130120), (16, 7988855), (20, 6391084), (28, 4565060), (31, 4123280), (35, 3652048), (37, 3454640), (40, 3195542), (56, 2282530), (62, 2061640), (70, 1826024), (74, 1727320), (80, 1597771), (112, 1141265), (124, 1030820), (140, 913012), (148, 863660), (155, 824656), (185, 690928), (199, 642320), (217, 589040), (248, 515410), (259, 493520), (280, 456506), (296, 431830), (310, 412328), (370, 345464), (398, 321160), (434, 294520), (496, 257705), (518, 246760), (560, 228253), (592, 215915), (620, 206164), (740, 172732), (796, 160580), (868, 147260), (995, 128464), (1036, 123380), (1085, 117808), (1147, 111440), (1240, 103082), (1295, 98704), (1393, 91760), (1480, 86366), (1592, 80290), (1736, 73630), (1990, 64232), (2072, 61690), (2170, 58904), (2294, 55720), (2480, 51541), (2590, 49352), (2786, 45880), (2960, 43183), (3184, 40145), (3472, 36815), (3980, 32116), (4144, 30845), (4340, 29452), (4588, 27860), (5180, 24676), (5572, 22940), (5735, 22288), (6169, 20720), (6965, 18352), (7363, 17360), (7960, 16058), (8029, 15920), (8680, 14726), (9176, 13930), (10360, 12338), (11144, 11470)]