19449990

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 41513850

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 41, 42, 45, 54, 63, 70, 82, 90, 105, 123, 126, 135, 189, 205, 210, 246, 251, 270, 287, 315, 369, 378, 410, 502, 574, 615, 630, 738, 753, 861, 945, 1107, 1230, 1255, 1435, 1506, 1722, 1757, 1845, 1890, 2214, 2259, 2510, 2583, 2870, 3514, 3690, 3765, 4305, 4518, 5166, 5271, 5535, 6777, 7530, 7749, 8610, 8785, 10291, 10542, 11070, 11295, 12915, 13554, 15498, 15813, 17570, 20582, 22590, 25830, 26355, 30873, 31626, 33885, 38745, 47439, 51455, 52710, 61746, 67770, 72037, 77490, 79065, 92619, 94878, 102910, 144074, 154365, 158130, 185238, 216111, 237195, 277857, 308730, 360185, 432222, 463095, 474390, 555714, 648333, 720370, 926190, 1080555, 1296666, 1389285, 1944999, 2161110, 2778570, 3241665, 3889998, 6483330, 9724995, 19449990]

約数ペア:

[(1, 19449990), (2, 9724995), (3, 6483330), (5, 3889998), (6, 3241665), (7, 2778570), (9, 2161110), (10, 1944999), (14, 1389285), (15, 1296666), (18, 1080555), (21, 926190), (27, 720370), (30, 648333), (35, 555714), (41, 474390), (42, 463095), (45, 432222), (54, 360185), (63, 308730), (70, 277857), (82, 237195), (90, 216111), (105, 185238), (123, 158130), (126, 154365), (135, 144074), (189, 102910), (205, 94878), (210, 92619), (246, 79065), (251, 77490), (270, 72037), (287, 67770), (315, 61746), (369, 52710), (378, 51455), (410, 47439), (502, 38745), (574, 33885), (615, 31626), (630, 30873), (738, 26355), (753, 25830), (861, 22590), (945, 20582), (1107, 17570), (1230, 15813), (1255, 15498), (1435, 13554), (1506, 12915), (1722, 11295), (1757, 11070), (1845, 10542), (1890, 10291), (2214, 8785), (2259, 8610), (2510, 7749), (2583, 7530), (2870, 6777), (3514, 5535), (3690, 5271), (3765, 5166), (4305, 4518)]