199888640

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{3187}}^1$

素因数の和:3222

約数の個数: 108

約数和(自身を含む): 557141256

約数和(自身を除く): 357252616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 256, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1280, 1568, 1792, 1960, 2240, 3136, 3187, 3920, 4480, 6272, 6374, 7840, 8960, 12544, 12748, 15680, 15935, 22309, 25496, 31360, 31870, 44618, 50992, 62720, 63740, 89236, 101984, 111545, 127480, 156163, 178472, 203968, 223090, 254960, 312326, 356944, 407936, 446180, 509920, 624652, 713888, 780815, 815872, 892360, 1019840, 1249304, 1427776, 1561630, 1784720, 2039680, 2498608, 2855552, 3123260, 3569440, 4079360, 4997216, 5711104, 6246520, 7138880, 9994432, 12493040, 14277760, 19988864, 24986080, 28555520, 39977728, 49972160, 99944320, 199888640]

約数ペア:

[(1, 199888640), (2, 99944320), (4, 49972160), (5, 39977728), (7, 28555520), (8, 24986080), (10, 19988864), (14, 14277760), (16, 12493040), (20, 9994432), (28, 7138880), (32, 6246520), (35, 5711104), (40, 4997216), (49, 4079360), (56, 3569440), (64, 3123260), (70, 2855552), (80, 2498608), (98, 2039680), (112, 1784720), (128, 1561630), (140, 1427776), (160, 1249304), (196, 1019840), (224, 892360), (245, 815872), (256, 780815), (280, 713888), (320, 624652), (392, 509920), (448, 446180), (490, 407936), (560, 356944), (640, 312326), (784, 254960), (896, 223090), (980, 203968), (1120, 178472), (1280, 156163), (1568, 127480), (1792, 111545), (1960, 101984), (2240, 89236), (3136, 63740), (3187, 62720), (3920, 50992), (4480, 44618), (6272, 31870), (6374, 31360), (7840, 25496), (8960, 22309), (12544, 15935), (12748, 15680)]