205644420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2081}}^1$

素因数の和:2163

約数の個数: 120

約数和(自身を含む): 656004888

約数和(自身を除く): 450360468

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 244, 270, 305, 324, 366, 405, 540, 549, 610, 732, 810, 915, 1098, 1220, 1620, 1647, 1830, 2081, 2196, 2745, 3294, 3660, 4162, 4941, 5490, 6243, 6588, 8235, 8324, 9882, 10405, 10980, 12486, 16470, 18729, 19764, 20810, 24705, 24972, 31215, 32940, 37458, 41620, 49410, 56187, 62430, 74916, 93645, 98820, 112374, 124860, 126941, 168561, 187290, 224748, 253882, 280935, 337122, 374580, 380823, 507764, 561870, 634705, 674244, 761646, 842805, 1123740, 1142469, 1269410, 1523292, 1685610, 1904115, 2284938, 2538820, 3371220, 3427407, 3808230, 4569876, 5712345, 6854814, 7616460, 10282221, 11424690, 13709628, 17137035, 20564442, 22849380, 34274070, 41128884, 51411105, 68548140, 102822210, 205644420]

約数ペア:

[(1, 205644420), (2, 102822210), (3, 68548140), (4, 51411105), (5, 41128884), (6, 34274070), (9, 22849380), (10, 20564442), (12, 17137035), (15, 13709628), (18, 11424690), (20, 10282221), (27, 7616460), (30, 6854814), (36, 5712345), (45, 4569876), (54, 3808230), (60, 3427407), (61, 3371220), (81, 2538820), (90, 2284938), (108, 1904115), (122, 1685610), (135, 1523292), (162, 1269410), (180, 1142469), (183, 1123740), (244, 842805), (270, 761646), (305, 674244), (324, 634705), (366, 561870), (405, 507764), (540, 380823), (549, 374580), (610, 337122), (732, 280935), (810, 253882), (915, 224748), (1098, 187290), (1220, 168561), (1620, 126941), (1647, 124860), (1830, 112374), (2081, 98820), (2196, 93645), (2745, 74916), (3294, 62430), (3660, 56187), (4162, 49410), (4941, 41620), (5490, 37458), (6243, 32940), (6588, 31215), (8235, 24972), (8324, 24705), (9882, 20810), (10405, 19764), (10980, 18729), (12486, 16470)]