388403743

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 540743040

約数和(自身を除く): 152339297

約数列:

[1, 7, 13, 17, 31, 49, 89, 91, 119, 169, 217, 221, 403, 527, 623, 637, 833, 1157, 1183, 1513, 1519, 1547, 2759, 2821, 2873, 3689, 4361, 5239, 6851, 8099, 8281, 10591, 10829, 15041, 19313, 19669, 19747, 20111, 25823, 35867, 36673, 46903, 47957, 56693, 74137, 89063, 105287, 135191, 137683, 140777, 251069, 255697, 256711, 328321, 335699, 466271, 609739, 623441, 737009, 963781, 1757483, 1789879, 2298247, 3263897, 4268173, 4364087, 7926607, 12529153, 22847279, 29877211, 55486249, 388403743]

約数ペア:

[(1, 388403743), (7, 55486249), (13, 29877211), (17, 22847279), (31, 12529153), (49, 7926607), (89, 4364087), (91, 4268173), (119, 3263897), (169, 2298247), (217, 1789879), (221, 1757483), (403, 963781), (527, 737009), (623, 623441), (637, 609739), (833, 466271), (1157, 335699), (1183, 328321), (1513, 256711), (1519, 255697), (1547, 251069), (2759, 140777), (2821, 137683), (2873, 135191), (3689, 105287), (4361, 89063), (5239, 74137), (6851, 56693), (8099, 47957), (8281, 46903), (10591, 36673), (10829, 35867), (15041, 25823), (19313, 20111), (19669, 19747)]