31207120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{419}}^1$

素因数の和:465

約数の個数: 120

約数和(自身を含む): 89056800

約数和(自身を除く): 57849680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 380, 392, 419, 490, 532, 560, 665, 760, 784, 838, 931, 980, 1064, 1330, 1520, 1676, 1862, 1960, 2095, 2128, 2660, 2933, 3352, 3724, 3920, 4190, 4655, 5320, 5866, 6704, 7448, 7961, 8380, 9310, 10640, 11732, 14665, 14896, 15922, 16760, 18620, 20531, 23464, 29330, 31844, 33520, 37240, 39805, 41062, 46928, 55727, 58660, 63688, 74480, 79610, 82124, 102655, 111454, 117320, 127376, 159220, 164248, 205310, 222908, 234640, 278635, 318440, 328496, 390089, 410620, 445816, 557270, 636880, 780178, 821240, 891632, 1114540, 1560356, 1642480, 1950445, 2229080, 3120712, 3900890, 4458160, 6241424, 7801780, 15603560, 31207120]

約数ペア:

[(1, 31207120), (2, 15603560), (4, 7801780), (5, 6241424), (7, 4458160), (8, 3900890), (10, 3120712), (14, 2229080), (16, 1950445), (19, 1642480), (20, 1560356), (28, 1114540), (35, 891632), (38, 821240), (40, 780178), (49, 636880), (56, 557270), (70, 445816), (76, 410620), (80, 390089), (95, 328496), (98, 318440), (112, 278635), (133, 234640), (140, 222908), (152, 205310), (190, 164248), (196, 159220), (245, 127376), (266, 117320), (280, 111454), (304, 102655), (380, 82124), (392, 79610), (419, 74480), (490, 63688), (532, 58660), (560, 55727), (665, 46928), (760, 41062), (784, 39805), (838, 37240), (931, 33520), (980, 31844), (1064, 29330), (1330, 23464), (1520, 20531), (1676, 18620), (1862, 16760), (1960, 15922), (2095, 14896), (2128, 14665), (2660, 11732), (2933, 10640), (3352, 9310), (3724, 8380), (3920, 7961), (4190, 7448), (4655, 6704), (5320, 5866)]