74878860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{25469}}^1$

素因数の和:25495

約数の個数: 72

約数和(自身を含む): 243900720

約数和(自身を除く): 169021860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 25469, 50938, 76407, 101876, 127345, 152814, 178283, 254690, 305628, 356566, 382035, 509380, 534849, 713132, 764070, 891415, 1069698, 1247981, 1528140, 1782830, 2139396, 2495962, 2674245, 3565660, 3743943, 4991924, 5348490, 6239905, 7487886, 10696980, 12479810, 14975772, 18719715, 24959620, 37439430, 74878860]

約数ペア:

[(1, 74878860), (2, 37439430), (3, 24959620), (4, 18719715), (5, 14975772), (6, 12479810), (7, 10696980), (10, 7487886), (12, 6239905), (14, 5348490), (15, 4991924), (20, 3743943), (21, 3565660), (28, 2674245), (30, 2495962), (35, 2139396), (42, 1782830), (49, 1528140), (60, 1247981), (70, 1069698), (84, 891415), (98, 764070), (105, 713132), (140, 534849), (147, 509380), (196, 382035), (210, 356566), (245, 305628), (294, 254690), (420, 178283), (490, 152814), (588, 127345), (735, 101876), (980, 76407), (1470, 50938), (2940, 25469)]