217871290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12601}}^1$

素因数の和:12647

約数の個数: 64

約数和(自身を含む): 508112640

約数和(自身を除く): 290241350

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 65, 70, 91, 95, 130, 133, 182, 190, 247, 266, 455, 494, 665, 910, 1235, 1330, 1729, 2470, 3458, 8645, 12601, 17290, 25202, 63005, 88207, 126010, 163813, 176414, 239419, 327626, 441035, 478838, 819065, 882070, 1146691, 1197095, 1638130, 1675933, 2293382, 2394190, 3112447, 3351866, 5733455, 6224894, 8379665, 11466910, 15562235, 16759330, 21787129, 31124470, 43574258, 108935645, 217871290]

約数ペア:

[(1, 217871290), (2, 108935645), (5, 43574258), (7, 31124470), (10, 21787129), (13, 16759330), (14, 15562235), (19, 11466910), (26, 8379665), (35, 6224894), (38, 5733455), (65, 3351866), (70, 3112447), (91, 2394190), (95, 2293382), (130, 1675933), (133, 1638130), (182, 1197095), (190, 1146691), (247, 882070), (266, 819065), (455, 478838), (494, 441035), (665, 327626), (910, 239419), (1235, 176414), (1330, 163813), (1729, 126010), (2470, 88207), (3458, 63005), (8645, 25202), (12601, 17290)]