669391450

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{21017}}^1$

素因数の和:21056

約数の個数: 72

約数和(自身を含む): 1559829852

約数和(自身を除く): 890438402

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 49, 50, 65, 70, 91, 98, 130, 175, 182, 245, 325, 350, 455, 490, 637, 650, 910, 1225, 1274, 2275, 2450, 3185, 4550, 6370, 15925, 21017, 31850, 42034, 105085, 147119, 210170, 273221, 294238, 525425, 546442, 735595, 1029833, 1050850, 1366105, 1471190, 1912547, 2059666, 2732210, 3677975, 3825094, 5149165, 6830525, 7355950, 9562735, 10298330, 13387829, 13661050, 19125470, 25745825, 26775658, 47813675, 51491650, 66939145, 95627350, 133878290, 334695725, 669391450]

約数ペア:

[(1, 669391450), (2, 334695725), (5, 133878290), (7, 95627350), (10, 66939145), (13, 51491650), (14, 47813675), (25, 26775658), (26, 25745825), (35, 19125470), (49, 13661050), (50, 13387829), (65, 10298330), (70, 9562735), (91, 7355950), (98, 6830525), (130, 5149165), (175, 3825094), (182, 3677975), (245, 2732210), (325, 2059666), (350, 1912547), (455, 1471190), (490, 1366105), (637, 1050850), (650, 1029833), (910, 735595), (1225, 546442), (1274, 525425), (2275, 294238), (2450, 273221), (3185, 210170), (4550, 147119), (6370, 105085), (15925, 42034), (21017, 31850)]