256080300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{197}}^1\times {\mathrm{619}}^1$

素因数の和:840

約数の個数: 144

約数和(自身を含む): 852445440

約数和(自身を除く): 596365140

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 197, 210, 300, 350, 394, 420, 525, 591, 619, 700, 788, 985, 1050, 1182, 1238, 1379, 1857, 1970, 2100, 2364, 2476, 2758, 2955, 3095, 3714, 3940, 4137, 4333, 4925, 5516, 5910, 6190, 6895, 7428, 8274, 8666, 9285, 9850, 11820, 12380, 12999, 13790, 14775, 15475, 16548, 17332, 18570, 19700, 20685, 21665, 25998, 27580, 29550, 30950, 34475, 37140, 41370, 43330, 46425, 51996, 59100, 61900, 64995, 68950, 82740, 86660, 92850, 103425, 108325, 121943, 129990, 137900, 185700, 206850, 216650, 243886, 259980, 324975, 365829, 413700, 433300, 487772, 609715, 649950, 731658, 853601, 1219430, 1299900, 1463316, 1707202, 1829145, 2438860, 2560803, 3048575, 3414404, 3658290, 4268005, 5121606, 6097150, 7316580, 8536010, 9145725, 10243212, 12194300, 12804015, 17072020, 18291450, 21340025, 25608030, 36582900, 42680050, 51216060, 64020075, 85360100, 128040150, 256080300]

約数ペア:

[(1, 256080300), (2, 128040150), (3, 85360100), (4, 64020075), (5, 51216060), (6, 42680050), (7, 36582900), (10, 25608030), (12, 21340025), (14, 18291450), (15, 17072020), (20, 12804015), (21, 12194300), (25, 10243212), (28, 9145725), (30, 8536010), (35, 7316580), (42, 6097150), (50, 5121606), (60, 4268005), (70, 3658290), (75, 3414404), (84, 3048575), (100, 2560803), (105, 2438860), (140, 1829145), (150, 1707202), (175, 1463316), (197, 1299900), (210, 1219430), (300, 853601), (350, 731658), (394, 649950), (420, 609715), (525, 487772), (591, 433300), (619, 413700), (700, 365829), (788, 324975), (985, 259980), (1050, 243886), (1182, 216650), (1238, 206850), (1379, 185700), (1857, 137900), (1970, 129990), (2100, 121943), (2364, 108325), (2476, 103425), (2758, 92850), (2955, 86660), (3095, 82740), (3714, 68950), (3940, 64995), (4137, 61900), (4333, 59100), (4925, 51996), (5516, 46425), (5910, 43330), (6190, 41370), (6895, 37140), (7428, 34475), (8274, 30950), (8666, 29550), (9285, 27580), (9850, 25998), (11820, 21665), (12380, 20685), (12999, 19700), (13790, 18570), (14775, 17332), (15475, 16548)]