31435740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:492

約数の個数: 144

約数和(自身を含む): 111034560

約数和(自身を除く): 79598820

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 61, 63, 70, 84, 90, 105, 122, 126, 140, 180, 183, 210, 244, 252, 305, 315, 366, 409, 420, 427, 549, 610, 630, 732, 818, 854, 915, 1098, 1220, 1227, 1260, 1281, 1636, 1708, 1830, 2045, 2135, 2196, 2454, 2562, 2745, 2863, 3660, 3681, 3843, 4090, 4270, 4908, 5124, 5490, 5726, 6135, 6405, 7362, 7686, 8180, 8540, 8589, 10980, 11452, 12270, 12810, 14315, 14724, 15372, 17178, 18405, 19215, 24540, 24949, 25620, 25767, 28630, 34356, 36810, 38430, 42945, 49898, 51534, 57260, 73620, 74847, 76860, 85890, 99796, 103068, 124745, 128835, 149694, 171780, 174643, 224541, 249490, 257670, 299388, 349286, 374235, 449082, 498980, 515340, 523929, 698572, 748470, 873215, 898164, 1047858, 1122705, 1496940, 1571787, 1746430, 2095716, 2245410, 2619645, 3143574, 3492860, 4490820, 5239290, 6287148, 7858935, 10478580, 15717870, 31435740]

約数ペア:

[(1, 31435740), (2, 15717870), (3, 10478580), (4, 7858935), (5, 6287148), (6, 5239290), (7, 4490820), (9, 3492860), (10, 3143574), (12, 2619645), (14, 2245410), (15, 2095716), (18, 1746430), (20, 1571787), (21, 1496940), (28, 1122705), (30, 1047858), (35, 898164), (36, 873215), (42, 748470), (45, 698572), (60, 523929), (61, 515340), (63, 498980), (70, 449082), (84, 374235), (90, 349286), (105, 299388), (122, 257670), (126, 249490), (140, 224541), (180, 174643), (183, 171780), (210, 149694), (244, 128835), (252, 124745), (305, 103068), (315, 99796), (366, 85890), (409, 76860), (420, 74847), (427, 73620), (549, 57260), (610, 51534), (630, 49898), (732, 42945), (818, 38430), (854, 36810), (915, 34356), (1098, 28630), (1220, 25767), (1227, 25620), (1260, 24949), (1281, 24540), (1636, 19215), (1708, 18405), (1830, 17178), (2045, 15372), (2135, 14724), (2196, 14315), (2454, 12810), (2562, 12270), (2745, 11452), (2863, 10980), (3660, 8589), (3681, 8540), (3843, 8180), (4090, 7686), (4270, 7362), (4908, 6405), (5124, 6135), (5490, 5726)]