121214240

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{15461}}^1$

素因数の和:15490

約数の個数: 72

約数和(自身を含む): 333144252

約数和(自身を除く): 211930012

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 15461, 30922, 61844, 77305, 108227, 123688, 154610, 216454, 247376, 309220, 432908, 494752, 541135, 618440, 757589, 865816, 1082270, 1236880, 1515178, 1731632, 2164540, 2473760, 3030356, 3463264, 3787945, 4329080, 6060712, 7575890, 8658160, 12121424, 15151780, 17316320, 24242848, 30303560, 60607120, 121214240]

約数ペア:

[(1, 121214240), (2, 60607120), (4, 30303560), (5, 24242848), (7, 17316320), (8, 15151780), (10, 12121424), (14, 8658160), (16, 7575890), (20, 6060712), (28, 4329080), (32, 3787945), (35, 3463264), (40, 3030356), (49, 2473760), (56, 2164540), (70, 1731632), (80, 1515178), (98, 1236880), (112, 1082270), (140, 865816), (160, 757589), (196, 618440), (224, 541135), (245, 494752), (280, 432908), (392, 309220), (490, 247376), (560, 216454), (784, 154610), (980, 123688), (1120, 108227), (1568, 77305), (1960, 61844), (3920, 30922), (7840, 15461)]