217910640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:415

約数の個数: 160

約数和(自身を含む): 707097600

約数和(自身を除く): 489186960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 29, 30, 40, 48, 58, 60, 80, 87, 116, 120, 131, 145, 174, 232, 239, 240, 262, 290, 348, 393, 435, 464, 478, 524, 580, 655, 696, 717, 786, 870, 956, 1048, 1160, 1195, 1310, 1392, 1434, 1572, 1740, 1912, 1965, 2096, 2320, 2390, 2620, 2868, 3144, 3480, 3585, 3799, 3824, 3930, 4780, 5240, 5736, 6288, 6931, 6960, 7170, 7598, 7860, 9560, 10480, 11397, 11472, 13862, 14340, 15196, 15720, 18995, 19120, 20793, 22794, 27724, 28680, 30392, 31309, 31440, 34655, 37990, 41586, 45588, 55448, 56985, 57360, 60784, 62618, 69310, 75980, 83172, 91176, 93927, 103965, 110896, 113970, 125236, 138620, 151960, 156545, 166344, 182352, 187854, 207930, 227940, 250472, 277240, 303920, 313090, 332688, 375708, 415860, 455880, 469635, 500944, 554480, 626180, 751416, 831720, 907961, 911760, 939270, 1252360, 1502832, 1663440, 1815922, 1878540, 2504720, 2723883, 3631844, 3757080, 4539805, 5447766, 7263688, 7514160, 9079610, 10895532, 13619415, 14527376, 18159220, 21791064, 27238830, 36318440, 43582128, 54477660, 72636880, 108955320, 217910640]

約数ペア:

[(1, 217910640), (2, 108955320), (3, 72636880), (4, 54477660), (5, 43582128), (6, 36318440), (8, 27238830), (10, 21791064), (12, 18159220), (15, 14527376), (16, 13619415), (20, 10895532), (24, 9079610), (29, 7514160), (30, 7263688), (40, 5447766), (48, 4539805), (58, 3757080), (60, 3631844), (80, 2723883), (87, 2504720), (116, 1878540), (120, 1815922), (131, 1663440), (145, 1502832), (174, 1252360), (232, 939270), (239, 911760), (240, 907961), (262, 831720), (290, 751416), (348, 626180), (393, 554480), (435, 500944), (464, 469635), (478, 455880), (524, 415860), (580, 375708), (655, 332688), (696, 313090), (717, 303920), (786, 277240), (870, 250472), (956, 227940), (1048, 207930), (1160, 187854), (1195, 182352), (1310, 166344), (1392, 156545), (1434, 151960), (1572, 138620), (1740, 125236), (1912, 113970), (1965, 110896), (2096, 103965), (2320, 93927), (2390, 91176), (2620, 83172), (2868, 75980), (3144, 69310), (3480, 62618), (3585, 60784), (3799, 57360), (3824, 56985), (3930, 55448), (4780, 45588), (5240, 41586), (5736, 37990), (6288, 34655), (6931, 31440), (6960, 31309), (7170, 30392), (7598, 28680), (7860, 27724), (9560, 22794), (10480, 20793), (11397, 19120), (11472, 18995), (13862, 15720), (14340, 15196)]