721641888

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{631}}^1$

素因数の和:696

約数の個数: 216

約数和(自身を含む): 2366503776

約数和(自身を除く): 1644861888

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 19, 22, 24, 32, 33, 36, 38, 44, 48, 57, 66, 72, 76, 88, 96, 99, 114, 132, 144, 152, 171, 176, 198, 209, 228, 264, 288, 304, 342, 352, 361, 396, 418, 456, 528, 608, 627, 631, 684, 722, 792, 836, 912, 1056, 1083, 1254, 1262, 1368, 1444, 1584, 1672, 1824, 1881, 1893, 2166, 2508, 2524, 2736, 2888, 3168, 3249, 3344, 3762, 3786, 3971, 4332, 5016, 5048, 5472, 5679, 5776, 6498, 6688, 6941, 7524, 7572, 7942, 8664, 10032, 10096, 11358, 11552, 11913, 11989, 12996, 13882, 15048, 15144, 15884, 17328, 20064, 20192, 20823, 22716, 23826, 23978, 25992, 27764, 30096, 30288, 31768, 34656, 35739, 35967, 41646, 45432, 47652, 47956, 51984, 55528, 60192, 60576, 62469, 63536, 71478, 71934, 83292, 90864, 95304, 95912, 103968, 107901, 111056, 124938, 127072, 131879, 142956, 143868, 166584, 181728, 190608, 191824, 215802, 222112, 227791, 249876, 263758, 285912, 287736, 333168, 381216, 383648, 395637, 431604, 455582, 499752, 527516, 571824, 575472, 666336, 683373, 791274, 863208, 911164, 999504, 1055032, 1143648, 1150944, 1186911, 1366746, 1582548, 1726416, 1822328, 1999008, 2050119, 2110064, 2373822, 2505701, 2733492, 3165096, 3452832, 3644656, 4100238, 4220128, 4747644, 5011402, 5466984, 6330192, 7289312, 7517103, 8200476, 9495288, 10022804, 10933968, 12660384, 15034206, 16400952, 18990576, 20045608, 21867936, 22551309, 30068412, 32801904, 37981152, 40091216, 45102618, 60136824, 65603808, 80182432, 90205236, 120273648, 180410472, 240547296, 360820944, 721641888]

約数ペア:

[(1, 721641888), (2, 360820944), (3, 240547296), (4, 180410472), (6, 120273648), (8, 90205236), (9, 80182432), (11, 65603808), (12, 60136824), (16, 45102618), (18, 40091216), (19, 37981152), (22, 32801904), (24, 30068412), (32, 22551309), (33, 21867936), (36, 20045608), (38, 18990576), (44, 16400952), (48, 15034206), (57, 12660384), (66, 10933968), (72, 10022804), (76, 9495288), (88, 8200476), (96, 7517103), (99, 7289312), (114, 6330192), (132, 5466984), (144, 5011402), (152, 4747644), (171, 4220128), (176, 4100238), (198, 3644656), (209, 3452832), (228, 3165096), (264, 2733492), (288, 2505701), (304, 2373822), (342, 2110064), (352, 2050119), (361, 1999008), (396, 1822328), (418, 1726416), (456, 1582548), (528, 1366746), (608, 1186911), (627, 1150944), (631, 1143648), (684, 1055032), (722, 999504), (792, 911164), (836, 863208), (912, 791274), (1056, 683373), (1083, 666336), (1254, 575472), (1262, 571824), (1368, 527516), (1444, 499752), (1584, 455582), (1672, 431604), (1824, 395637), (1881, 383648), (1893, 381216), (2166, 333168), (2508, 287736), (2524, 285912), (2736, 263758), (2888, 249876), (3168, 227791), (3249, 222112), (3344, 215802), (3762, 191824), (3786, 190608), (3971, 181728), (4332, 166584), (5016, 143868), (5048, 142956), (5472, 131879), (5679, 127072), (5776, 124938), (6498, 111056), (6688, 107901), (6941, 103968), (7524, 95912), (7572, 95304), (7942, 90864), (8664, 83292), (10032, 71934), (10096, 71478), (11358, 63536), (11552, 62469), (11913, 60576), (11989, 60192), (12996, 55528), (13882, 51984), (15048, 47956), (15144, 47652), (15884, 45432), (17328, 41646), (20064, 35967), (20192, 35739), (20823, 34656), (22716, 31768), (23826, 30288), (23978, 30096), (25992, 27764)]