207748920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{281}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 642012480

約数和(自身を除く): 434263560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 101, 120, 122, 183, 202, 244, 281, 303, 305, 366, 404, 488, 505, 562, 606, 610, 732, 808, 843, 915, 1010, 1124, 1212, 1220, 1405, 1464, 1515, 1686, 1830, 2020, 2248, 2424, 2440, 2810, 3030, 3372, 3660, 4040, 4215, 5620, 6060, 6161, 6744, 7320, 8430, 11240, 12120, 12322, 16860, 17141, 18483, 24644, 28381, 30805, 33720, 34282, 36966, 49288, 51423, 56762, 61610, 68564, 73932, 85143, 85705, 92415, 102846, 113524, 123220, 137128, 141905, 147864, 170286, 171410, 184830, 205692, 227048, 246440, 257115, 283810, 340572, 342820, 369660, 411384, 425715, 514230, 567620, 681144, 685640, 739320, 851430, 1028460, 1135240, 1702860, 1731241, 2056920, 3405720, 3462482, 5193723, 6924964, 8656205, 10387446, 13849928, 17312410, 20774892, 25968615, 34624820, 41549784, 51937230, 69249640, 103874460, 207748920]

約数ペア:

[(1, 207748920), (2, 103874460), (3, 69249640), (4, 51937230), (5, 41549784), (6, 34624820), (8, 25968615), (10, 20774892), (12, 17312410), (15, 13849928), (20, 10387446), (24, 8656205), (30, 6924964), (40, 5193723), (60, 3462482), (61, 3405720), (101, 2056920), (120, 1731241), (122, 1702860), (183, 1135240), (202, 1028460), (244, 851430), (281, 739320), (303, 685640), (305, 681144), (366, 567620), (404, 514230), (488, 425715), (505, 411384), (562, 369660), (606, 342820), (610, 340572), (732, 283810), (808, 257115), (843, 246440), (915, 227048), (1010, 205692), (1124, 184830), (1212, 171410), (1220, 170286), (1405, 147864), (1464, 141905), (1515, 137128), (1686, 123220), (1830, 113524), (2020, 102846), (2248, 92415), (2424, 85705), (2440, 85143), (2810, 73932), (3030, 68564), (3372, 61610), (3660, 56762), (4040, 51423), (4215, 49288), (5620, 36966), (6060, 34282), (6161, 33720), (6744, 30805), (7320, 28381), (8430, 24644), (11240, 18483), (12120, 17141), (12322, 16860)]