19970104

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1907}}^1$

素因数の和:1948

約数の個数: 64

約数和(自身を含む): 49455360

約数和(自身を除く): 29485256

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 22, 28, 34, 44, 56, 68, 77, 88, 119, 136, 154, 187, 238, 308, 374, 476, 616, 748, 952, 1309, 1496, 1907, 2618, 3814, 5236, 7628, 10472, 13349, 15256, 20977, 26698, 32419, 41954, 53396, 64838, 83908, 106792, 129676, 146839, 167816, 226933, 259352, 293678, 356609, 453866, 587356, 713218, 907732, 1174712, 1426436, 1815464, 2496263, 2852872, 4992526, 9985052, 19970104]

約数ペア:

[(1, 19970104), (2, 9985052), (4, 4992526), (7, 2852872), (8, 2496263), (11, 1815464), (14, 1426436), (17, 1174712), (22, 907732), (28, 713218), (34, 587356), (44, 453866), (56, 356609), (68, 293678), (77, 259352), (88, 226933), (119, 167816), (136, 146839), (154, 129676), (187, 106792), (238, 83908), (308, 64838), (374, 53396), (476, 41954), (616, 32419), (748, 26698), (952, 20977), (1309, 15256), (1496, 13349), (1907, 10472), (2618, 7628), (3814, 5236)]