77988120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{409}}^1$

素因数の和:657

約数の個数: 128

約数和(自身を含む): 269222400

約数和(自身を除く): 191234280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 227, 280, 409, 420, 454, 681, 818, 840, 908, 1135, 1227, 1362, 1589, 1636, 1816, 2045, 2270, 2454, 2724, 2863, 3178, 3272, 3405, 4090, 4540, 4767, 4908, 5448, 5726, 6135, 6356, 6810, 7945, 8180, 8589, 9080, 9534, 9816, 11452, 12270, 12712, 13620, 14315, 15890, 16360, 17178, 19068, 22904, 23835, 24540, 27240, 28630, 31780, 34356, 38136, 42945, 47670, 49080, 57260, 63560, 68712, 85890, 92843, 95340, 114520, 171780, 185686, 190680, 278529, 343560, 371372, 464215, 557058, 649901, 742744, 928430, 1114116, 1299802, 1392645, 1856860, 1949703, 2228232, 2599604, 2785290, 3249505, 3713720, 3899406, 5199208, 5570580, 6499010, 7798812, 9748515, 11141160, 12998020, 15597624, 19497030, 25996040, 38994060, 77988120]

約数ペア:

[(1, 77988120), (2, 38994060), (3, 25996040), (4, 19497030), (5, 15597624), (6, 12998020), (7, 11141160), (8, 9748515), (10, 7798812), (12, 6499010), (14, 5570580), (15, 5199208), (20, 3899406), (21, 3713720), (24, 3249505), (28, 2785290), (30, 2599604), (35, 2228232), (40, 1949703), (42, 1856860), (56, 1392645), (60, 1299802), (70, 1114116), (84, 928430), (105, 742744), (120, 649901), (140, 557058), (168, 464215), (210, 371372), (227, 343560), (280, 278529), (409, 190680), (420, 185686), (454, 171780), (681, 114520), (818, 95340), (840, 92843), (908, 85890), (1135, 68712), (1227, 63560), (1362, 57260), (1589, 49080), (1636, 47670), (1816, 42945), (2045, 38136), (2270, 34356), (2454, 31780), (2724, 28630), (2863, 27240), (3178, 24540), (3272, 23835), (3405, 22904), (4090, 19068), (4540, 17178), (4767, 16360), (4908, 15890), (5448, 14315), (5726, 13620), (6135, 12712), (6356, 12270), (6810, 11452), (7945, 9816), (8180, 9534), (8589, 9080)]