420021448

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2111}}^1$

素因数の和:2171

約数の個数: 128

約数和(自身を含む): 1094860800

約数和(自身を除く): 674839352

約数列:

[1, 2, 4, 7, 8, 11, 14, 17, 19, 22, 28, 34, 38, 44, 56, 68, 76, 77, 88, 119, 133, 136, 152, 154, 187, 209, 238, 266, 308, 323, 374, 418, 476, 532, 616, 646, 748, 836, 952, 1064, 1292, 1309, 1463, 1496, 1672, 2111, 2261, 2584, 2618, 2926, 3553, 4222, 4522, 5236, 5852, 7106, 8444, 9044, 10472, 11704, 14212, 14777, 16888, 18088, 23221, 24871, 28424, 29554, 35887, 40109, 46442, 49742, 59108, 71774, 80218, 92884, 99484, 118216, 143548, 160436, 162547, 185768, 198968, 251209, 280763, 287096, 320872, 325094, 394757, 441199, 502418, 561526, 650188, 681853, 789514, 882398, 1004836, 1123052, 1300376, 1363706, 1579028, 1764796, 2009672, 2246104, 2727412, 2763299, 3088393, 3158056, 3529592, 4772971, 5454824, 5526598, 6176786, 7500383, 9545942, 11053196, 12353572, 15000766, 19091884, 22106392, 24707144, 30001532, 38183768, 52502681, 60003064, 105005362, 210010724, 420021448]

約数ペア:

[(1, 420021448), (2, 210010724), (4, 105005362), (7, 60003064), (8, 52502681), (11, 38183768), (14, 30001532), (17, 24707144), (19, 22106392), (22, 19091884), (28, 15000766), (34, 12353572), (38, 11053196), (44, 9545942), (56, 7500383), (68, 6176786), (76, 5526598), (77, 5454824), (88, 4772971), (119, 3529592), (133, 3158056), (136, 3088393), (152, 2763299), (154, 2727412), (187, 2246104), (209, 2009672), (238, 1764796), (266, 1579028), (308, 1363706), (323, 1300376), (374, 1123052), (418, 1004836), (476, 882398), (532, 789514), (616, 681853), (646, 650188), (748, 561526), (836, 502418), (952, 441199), (1064, 394757), (1292, 325094), (1309, 320872), (1463, 287096), (1496, 280763), (1672, 251209), (2111, 198968), (2261, 185768), (2584, 162547), (2618, 160436), (2926, 143548), (3553, 118216), (4222, 99484), (4522, 92884), (5236, 80218), (5852, 71774), (7106, 59108), (8444, 49742), (9044, 46442), (10472, 40109), (11704, 35887), (14212, 29554), (14777, 28424), (16888, 24871), (18088, 23221)]