640556982

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:219

約数の個数: 144

約数和(自身を含む): 1582701120

約数和(自身を除く): 942144138

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 43, 59, 78, 83, 86, 117, 118, 129, 166, 169, 177, 234, 249, 258, 338, 354, 387, 498, 507, 531, 559, 747, 767, 774, 1014, 1062, 1079, 1118, 1494, 1521, 1534, 1677, 2158, 2301, 2537, 3042, 3237, 3354, 3569, 4602, 4897, 5031, 5074, 6474, 6903, 7138, 7267, 7611, 9711, 9794, 9971, 10062, 10707, 13806, 14027, 14534, 14691, 15222, 19422, 19942, 21414, 21801, 22833, 28054, 29382, 29913, 32121, 32981, 42081, 43602, 44073, 45666, 46397, 59826, 63661, 64242, 65403, 65962, 84162, 88146, 89739, 92794, 98943, 126243, 127322, 130806, 139191, 179478, 190983, 197886, 210571, 252486, 278382, 296829, 381966, 417573, 421142, 428753, 572949, 593658, 603161, 631713, 827593, 835146, 857506, 1145898, 1206322, 1263426, 1286259, 1655186, 1809483, 1895139, 2482779, 2572518, 2737423, 3618966, 3790278, 3858777, 4965558, 5428449, 5474846, 7448337, 7717554, 8212269, 10856898, 14896674, 16424538, 24636807, 35586499, 49273614, 71172998, 106759497, 213518994, 320278491, 640556982]

約数ペア:

[(1, 640556982), (2, 320278491), (3, 213518994), (6, 106759497), (9, 71172998), (13, 49273614), (18, 35586499), (26, 24636807), (39, 16424538), (43, 14896674), (59, 10856898), (78, 8212269), (83, 7717554), (86, 7448337), (117, 5474846), (118, 5428449), (129, 4965558), (166, 3858777), (169, 3790278), (177, 3618966), (234, 2737423), (249, 2572518), (258, 2482779), (338, 1895139), (354, 1809483), (387, 1655186), (498, 1286259), (507, 1263426), (531, 1206322), (559, 1145898), (747, 857506), (767, 835146), (774, 827593), (1014, 631713), (1062, 603161), (1079, 593658), (1118, 572949), (1494, 428753), (1521, 421142), (1534, 417573), (1677, 381966), (2158, 296829), (2301, 278382), (2537, 252486), (3042, 210571), (3237, 197886), (3354, 190983), (3569, 179478), (4602, 139191), (4897, 130806), (5031, 127322), (5074, 126243), (6474, 98943), (6903, 92794), (7138, 89739), (7267, 88146), (7611, 84162), (9711, 65962), (9794, 65403), (9971, 64242), (10062, 63661), (10707, 59826), (13806, 46397), (14027, 45666), (14534, 44073), (14691, 43602), (15222, 42081), (19422, 32981), (19942, 32121), (21414, 29913), (21801, 29382), (22833, 28054)]