1561771196

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1$

素因数の和:463

約数の個数: 72

約数和(自身を含む): 3010936320

約数和(自身を除く): 1449165124

約数列:

[1, 2, 4, 19, 31, 38, 62, 76, 124, 139, 251, 278, 361, 502, 556, 589, 722, 1004, 1178, 1444, 2356, 2641, 4309, 4769, 5282, 7781, 8618, 9538, 10564, 11191, 15562, 17236, 19076, 22382, 31124, 34889, 44764, 50179, 69778, 81871, 90611, 100358, 139556, 147839, 163742, 181222, 200716, 295678, 327484, 362444, 591356, 662891, 1081559, 1325782, 1555549, 2163118, 2651564, 2808941, 3111098, 4326236, 5617882, 6222196, 11235764, 12594929, 20549621, 25189858, 41099242, 50379716, 82198484, 390442799, 780885598, 1561771196]

約数ペア:

[(1, 1561771196), (2, 780885598), (4, 390442799), (19, 82198484), (31, 50379716), (38, 41099242), (62, 25189858), (76, 20549621), (124, 12594929), (139, 11235764), (251, 6222196), (278, 5617882), (361, 4326236), (502, 3111098), (556, 2808941), (589, 2651564), (722, 2163118), (1004, 1555549), (1178, 1325782), (1444, 1081559), (2356, 662891), (2641, 591356), (4309, 362444), (4769, 327484), (5282, 295678), (7781, 200716), (8618, 181222), (9538, 163742), (10564, 147839), (11191, 139556), (15562, 100358), (17236, 90611), (19076, 81871), (22382, 69778), (31124, 50179), (34889, 44764)]