20805558360

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1\times {\mathrm{4297}}^1$

素因数の和:4725

約数の個数: 128

約数和(自身を含む): 63073321920

約数和(自身を除く): 42267763560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 257, 314, 471, 514, 628, 771, 785, 942, 1028, 1256, 1285, 1542, 1570, 1884, 2056, 2355, 2570, 3084, 3140, 3768, 3855, 4297, 4710, 5140, 6168, 6280, 7710, 8594, 9420, 10280, 12891, 15420, 17188, 18840, 21485, 25782, 30840, 34376, 40349, 42970, 51564, 64455, 80698, 85940, 103128, 121047, 128910, 161396, 171880, 201745, 242094, 257820, 322792, 403490, 484188, 515640, 605235, 674629, 806980, 968376, 1104329, 1210470, 1349258, 1613960, 2023887, 2208658, 2420940, 2698516, 3312987, 3373145, 4047774, 4417316, 4841880, 5397032, 5521645, 6625974, 6746290, 8095548, 8834632, 10119435, 11043290, 13251948, 13492580, 16191096, 16564935, 20238870, 22086580, 26503896, 26985160, 33129870, 40477740, 44173160, 66259740, 80955480, 132519480, 173379653, 346759306, 520138959, 693518612, 866898265, 1040277918, 1387037224, 1733796530, 2080555836, 2600694795, 3467593060, 4161111672, 5201389590, 6935186120, 10402779180, 20805558360]

約数ペア:

[(1, 20805558360), (2, 10402779180), (3, 6935186120), (4, 5201389590), (5, 4161111672), (6, 3467593060), (8, 2600694795), (10, 2080555836), (12, 1733796530), (15, 1387037224), (20, 1040277918), (24, 866898265), (30, 693518612), (40, 520138959), (60, 346759306), (120, 173379653), (157, 132519480), (257, 80955480), (314, 66259740), (471, 44173160), (514, 40477740), (628, 33129870), (771, 26985160), (785, 26503896), (942, 22086580), (1028, 20238870), (1256, 16564935), (1285, 16191096), (1542, 13492580), (1570, 13251948), (1884, 11043290), (2056, 10119435), (2355, 8834632), (2570, 8095548), (3084, 6746290), (3140, 6625974), (3768, 5521645), (3855, 5397032), (4297, 4841880), (4710, 4417316), (5140, 4047774), (6168, 3373145), (6280, 3312987), (7710, 2698516), (8594, 2420940), (9420, 2208658), (10280, 2023887), (12891, 1613960), (15420, 1349258), (17188, 1210470), (18840, 1104329), (21485, 968376), (25782, 806980), (30840, 674629), (34376, 605235), (40349, 515640), (42970, 484188), (51564, 403490), (64455, 322792), (80698, 257820), (85940, 242094), (103128, 201745), (121047, 171880), (128910, 161396)]