20210770190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{359}}^1$

素因数の和:654

約数の個数: 128

約数和(自身を含む): 41313888000

約数和(自身を除く): 21103117810

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 109, 130, 137, 145, 218, 274, 290, 359, 377, 545, 685, 718, 754, 1090, 1370, 1417, 1781, 1795, 1885, 2834, 3161, 3562, 3590, 3770, 3973, 4667, 6322, 7085, 7946, 8905, 9334, 10411, 14170, 14933, 15805, 17810, 19865, 20822, 23335, 29866, 31610, 39131, 39730, 41093, 46670, 49183, 51649, 52055, 74665, 78262, 82186, 98366, 103298, 104110, 135343, 149330, 194129, 195655, 205465, 245915, 258245, 270686, 388258, 391310, 410930, 433057, 491830, 508703, 516490, 639379, 676715, 866114, 970645, 1017406, 1134799, 1278758, 1353430, 1426307, 1941290, 2165285, 2269598, 2543515, 2852614, 3196895, 4330570, 5087030, 5360947, 5629741, 5673995, 6393790, 7131535, 10721894, 11259482, 11347990, 14263070, 14752387, 18541991, 26804735, 28148705, 29504774, 37083982, 53609470, 56297410, 69692311, 73761935, 92709955, 139384622, 147523870, 155467463, 185419910, 310934926, 348461555, 696923110, 777337315, 1554674630, 2021077019, 4042154038, 10105385095, 20210770190]

約数ペア:

[(1, 20210770190), (2, 10105385095), (5, 4042154038), (10, 2021077019), (13, 1554674630), (26, 777337315), (29, 696923110), (58, 348461555), (65, 310934926), (109, 185419910), (130, 155467463), (137, 147523870), (145, 139384622), (218, 92709955), (274, 73761935), (290, 69692311), (359, 56297410), (377, 53609470), (545, 37083982), (685, 29504774), (718, 28148705), (754, 26804735), (1090, 18541991), (1370, 14752387), (1417, 14263070), (1781, 11347990), (1795, 11259482), (1885, 10721894), (2834, 7131535), (3161, 6393790), (3562, 5673995), (3590, 5629741), (3770, 5360947), (3973, 5087030), (4667, 4330570), (6322, 3196895), (7085, 2852614), (7946, 2543515), (8905, 2269598), (9334, 2165285), (10411, 1941290), (14170, 1426307), (14933, 1353430), (15805, 1278758), (17810, 1134799), (19865, 1017406), (20822, 970645), (23335, 866114), (29866, 676715), (31610, 639379), (39131, 516490), (39730, 508703), (41093, 491830), (46670, 433057), (49183, 410930), (51649, 391310), (52055, 388258), (74665, 270686), (78262, 258245), (82186, 245915), (98366, 205465), (103298, 195655), (104110, 194129), (135343, 149330)]