20478857343

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:441

約数の個数: 128

約数和(自身を含む): 34681651200

約数和(自身を除く): 14202793857

約数列:

[1, 3, 7, 19, 21, 47, 57, 59, 83, 133, 141, 177, 223, 249, 329, 399, 413, 581, 669, 893, 987, 1121, 1239, 1561, 1577, 1743, 2679, 2773, 3363, 3901, 4237, 4683, 4731, 4897, 6251, 7847, 8319, 10481, 11039, 11703, 12711, 13157, 14691, 18509, 18753, 19411, 23541, 27307, 29659, 31443, 33117, 34279, 39471, 52687, 55527, 58233, 73367, 74119, 81921, 88977, 92099, 93043, 102837, 129563, 158061, 199139, 220101, 222357, 230159, 249983, 276297, 279129, 351671, 368809, 388689, 518833, 597417, 618379, 651301, 690477, 749949, 869923, 1055013, 1092031, 1106427, 1393973, 1556499, 1611113, 1749881, 1855137, 1953903, 2461697, 2609769, 3276093, 4181919, 4328653, 4373021, 4833339, 5249643, 6089461, 7385091, 7644217, 11749201, 12985959, 13119063, 16528537, 18268383, 20748589, 22932651, 30611147, 35247603, 49585611, 51325457, 62245767, 82244407, 91833441, 115699759, 145240123, 153976371, 246733221, 347099277, 359278199, 435720369, 975183683, 1077834597, 2925551049, 6826285781, 20478857343]

約数ペア:

[(1, 20478857343), (3, 6826285781), (7, 2925551049), (19, 1077834597), (21, 975183683), (47, 435720369), (57, 359278199), (59, 347099277), (83, 246733221), (133, 153976371), (141, 145240123), (177, 115699759), (223, 91833441), (249, 82244407), (329, 62245767), (399, 51325457), (413, 49585611), (581, 35247603), (669, 30611147), (893, 22932651), (987, 20748589), (1121, 18268383), (1239, 16528537), (1561, 13119063), (1577, 12985959), (1743, 11749201), (2679, 7644217), (2773, 7385091), (3363, 6089461), (3901, 5249643), (4237, 4833339), (4683, 4373021), (4731, 4328653), (4897, 4181919), (6251, 3276093), (7847, 2609769), (8319, 2461697), (10481, 1953903), (11039, 1855137), (11703, 1749881), (12711, 1611113), (13157, 1556499), (14691, 1393973), (18509, 1106427), (18753, 1092031), (19411, 1055013), (23541, 869923), (27307, 749949), (29659, 690477), (31443, 651301), (33117, 618379), (34279, 597417), (39471, 518833), (52687, 388689), (55527, 368809), (58233, 351671), (73367, 279129), (74119, 276297), (81921, 249983), (88977, 230159), (92099, 222357), (93043, 220101), (102837, 199139), (129563, 158061)]